Consolidate duplicate "Access Lens" and "Save" steps into shared snippets across all 13 chart pages (#7020)

All 13 Lens chart pages repeated identical (or near-identical) "Access
Lens" and "Save the chart" step content inline, diverging in minor
wording over time. This follows the existing `lens-prerequisites.md`
snippet pattern already in use on these pages.

## New snippets
- `explore-analyze/_snippets/access-lens.md` — generic "Access Lens"
step body (only variation was chart type name, replaced with "the
visualization")
- `explore-analyze/_snippets/save-visualization.md` — canonical "Save"
step body with consistent wording

## All 13 chart pages updated
Inline content replaced with `:::{include}` directives:

```md
:::::{step} Access Lens
:::{include} ../../_snippets/access-lens.md
:::
:::::

:::::{step} Save the chart
:::{include} ../../_snippets/save-visualization.md
:::
:::::
```

## Wording standardized
- `"offers you to add"` → `"lets you add"` (gauge, heat-map)
- `"be able to add it to other dashboards later"` → `"reuse it later"`
(bar, metric, tables)
- `line-charts.md` truncated save instructions restored to full
canonical text
- Fixed double-period typo in `metric-charts.md`

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Florent LB <florent.leborgne@elastic.co>

Author: Copilot

explore-analyze/_snippets/access-lens.md

@@ -0,0 +1,3 @@
+**Lens** is {{kib}}'s main visualization editor. You can access it:
+- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add the visualization, then add a new visualization.
+- From the **Visualize library** page by creating a new visualization.

explore-analyze/_snippets/save-visualization.md

@@ -0,0 +1,2 @@
+- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library and be able to add it to other dashboards later.
+- If you accessed Lens from the Visualize library, select **Save**. A menu opens and lets you add the visualization to a dashboard and to the Visualize library.

explore-analyze/visualize/charts/area-charts.md

@@ -31,9 +31,8 @@ To build an area chart:
 ::::::{stepper}
 
 :::::{step} Access Lens
-**Lens** is {{kib}}'s main visualization editor. You can access it:
-- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add an area chart, then add a new visualization.
-- From the **Visualize library** page by creating a new visualization.
+:::{include} ../../_snippets/access-lens.md
+:::
 :::::
 
 :::::{step} Set the visualization to Area
@@ -74,8 +73,8 @@ For panel sizing and layout guidance, refer to [Organize dashboard panels](../..
 :::::
 
 :::::{step} Save the chart
-- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library and reuse it later.
-- If you accessed Lens from the Visualize library, select **Save**. A menu opens and lets you add the visualization to a dashboard and to the Visualize library.
+:::{include} ../../_snippets/save-visualization.md
+:::
 :::::
 
 ::::::

explore-analyze/visualize/charts/bar-charts.md

@@ -33,9 +33,8 @@ To build a bar chart:
 :::::{stepper}
 
 ::::{step} Access Lens
-**Lens** is {{kib}}'s main visualization editor. You can access it:
-- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add a bar chart, then add a new visualization.
-- From the **Visualize library** page by creating a new visualization.
+:::{include} ../../_snippets/access-lens.md
+:::
 ::::
 
 ::::{step} Set the visualization to Bar
@@ -82,8 +81,8 @@ For panel sizing and layout guidance, refer to [Organize dashboard panels](../..
 ::::
 
 ::::{step} Save the chart
-- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library and be able to add it to other dashboards later.
-- If you accessed Lens from the Visualize library, select **Save**. A menu opens and lets you add the visualization to a dashboard and to the Visualize library.
+:::{include} ../../_snippets/save-visualization.md
+:::
 ::::
 
 :::::

explore-analyze/visualize/charts/gauge-charts.md

@@ -26,9 +26,8 @@ To build a gauge chart:
 ::::::{stepper}
 
 :::::{step} Access Lens
-**Lens** is {{kib}}'s main visualization editor. You can access it:
-- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add a gauge chart, then add a new visualization.
-- From the **Visualize library** page by creating a new visualization.
+:::{include} ../../_snippets/access-lens.md
+:::
 :::::
 
 :::::{step} Set the visualization to Gauge
@@ -72,8 +71,8 @@ For panel sizing and layout guidance, refer to [Organize dashboard panels](../..
 :::::
 
 :::::{step} Save the chart
-- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library and reuse it later.
-- If you accessed Lens from the Visualize library, select **Save**. A menu opens and offers you to add the visualization to a dashboard and to the Visualize library.
+:::{include} ../../_snippets/save-visualization.md
+:::
 :::::
 
 ::::::

explore-analyze/visualize/charts/heat-map-charts.md

@@ -26,9 +26,8 @@ To build a heat map chart:
 ::::::{stepper}
 
 :::::{step} Access Lens
-**Lens** is {{kib}}'s main visualization editor. You can access it:
-- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add a heat map chart, then add a new visualization.
-- From the **Visualize library** page by creating a new visualization.
+:::{include} ../../_snippets/access-lens.md
+:::
 :::::
 
 :::::{step} Set the visualization to Heat map
@@ -69,8 +68,8 @@ For panel sizing and layout guidance, refer to [Organize dashboard panels](../..
 :::::
 
 :::::{step} Save the chart
-- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library and reuse it later.
-- If you accessed Lens from the Visualize library, select **Save**. A menu opens and offers you to add the visualization to a dashboard and to the Visualize library.
+:::{include} ../../_snippets/save-visualization.md
+:::
 :::::
 
 ::::::

explore-analyze/visualize/charts/line-charts.md

@@ -31,9 +31,8 @@ To build a line chart:
 ::::::{stepper}
 
 :::::{step} Access Lens
-**Lens** is {{kib}}'s main visualization editor. You can access it:
-- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add a line chart, then add a new visualization.
-- From the **Visualize library** page by creating a new visualization.
+:::{include} ../../_snippets/access-lens.md
+:::
 :::::
 
 :::::{step} Set the visualization to Line
@@ -70,8 +69,8 @@ For panel sizing and layout guidance, refer to [Organize dashboard panels](../..
 :::::
 
 :::::{step} Save the chart
-- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library.
-- If you accessed Lens from the Visualize library, select **Save**. The Save menu also lets you add the visualization to a dashboard and the Visualize library.
+:::{include} ../../_snippets/save-visualization.md
+:::
 :::::
 
 ::::::

explore-analyze/visualize/charts/metric-charts.md

@@ -35,9 +35,8 @@ To build a metric chart:
 :::::{stepper}
 
 ::::{step} Access Lens
-**Lens** is {{kib}}'s main visualization editor. You can access it:
-- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add a metric chart, then add a new visualization.
-- From the **Visualize library** page by creating a new visualization..
+:::{include} ../../_snippets/access-lens.md
+:::
 ::::
 
 ::::{step} Set the visualization to Metric
@@ -77,8 +76,8 @@ For panel sizing and layout guidance, refer to [Organize dashboard panels](../..
 ::::
 
 ::::{step} Save the chart
-- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library and be able to add it to other dashboards later.
-- If you accessed Lens from the Visualize library, select **Save**. A menu opens and lets you add the visualization to a dashboard and to the Visualize library.
+:::{include} ../../_snippets/save-visualization.md
+:::
 ::::
 
 :::::

explore-analyze/visualize/charts/mosaic-charts.md

@@ -26,9 +26,8 @@ To build a mosaic chart:
 ::::::{stepper}
 
 :::::{step} Access Lens
-**Lens** is {{kib}}'s main visualization editor. You can access it:
-- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add a mosaic chart, then add a new visualization.
-- From the **Visualize library** page by creating a new visualization.
+:::{include} ../../_snippets/access-lens.md
+:::
 :::::
 
 :::::{step} Set the visualization to Mosaic
@@ -67,8 +66,8 @@ For panel sizing and layout guidance, refer to [Organize dashboard panels](../..
 :::::
 
 :::::{step} Save the chart
-- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library and reuse it later.
-- If you accessed Lens from the Visualize library, select **Save**. A menu opens and lets you add the visualization to a dashboard and to the Visualize library.
+:::{include} ../../_snippets/save-visualization.md
+:::
 :::::
 
 ::::::

explore-analyze/visualize/charts/pie-charts.md

@@ -24,9 +24,8 @@ To build a pie chart:
 ::::::{stepper}
 
 :::::{step} Access Lens
-**Lens** is {{kib}}'s main visualization editor. You can access it:
-- From a dashboard: On the **Dashboards** page, open or create the dashboard where you want to add a pie chart, then add a new visualization.
-- From the **Visualize library** page by creating a new visualization.
+:::{include} ../../_snippets/access-lens.md
+:::
 :::::
 
 :::::{step} Set the visualization to Pie
@@ -71,8 +70,8 @@ For panel sizing and layout guidance, refer to [Organize dashboard panels](../..
 :::::
 
 :::::{step} Save the chart
-- If you accessed Lens from a dashboard, select **Save and return** to save the visualization and add it to that dashboard, or select **Save to library** to add the visualization to the Visualize library and reuse it later.
-- If you accessed Lens from the Visualize library, select **Save**. A menu opens and lets you add the visualization to a dashboard and to the Visualize library.
+:::{include} ../../_snippets/save-visualization.md
+:::
 :::::
 
 ::::::