docs: normalize heading and bullet label casing in editor configurations (#6178)

Co-authored-by: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>

Author: mintlify[bot]

editor/configurations.mdx

@@ -79,7 +79,7 @@ Add links and social media handles to your site footer.
 Display an announcement bar across the top of every page.
 
 - **Content**: The banner text. Supports basic MDX formatting like links, bold, and italic. Custom components are not supported.
-- **dismissible**: Show a dismiss button on the right side of the banner.
+- **Dismissible**: Show a dismiss button on the right side of the banner.
 - **Type**: Visual style. `info` uses the primary brand color, `warning` uses an amber background, and `critical` uses a red background. Defaults to `info`.
 - **Color**: Override the banner background color with a custom hex color. Set separate light and dark values for theme-aware colors.
 
@@ -99,7 +99,7 @@ Customize how content appears on your site.
 - **Timestamps**: Show the date the content was last modified on all pages.
 - **LaTeX**: Load LaTeX (KaTeX) stylesheets for mathematical notation rendering.
 
-## Codeblocks
+## Code blocks
 
 Configure syntax highlighting and code block behavior.
 
@@ -117,7 +117,7 @@ Configure the quick actions surfaced in the page context menu.
 
 Tune navigation behavior across your site.
 
-- **drilldown**: Auto-navigate to the first page when a user clicks a navigation group.
+- **Drilldown**: Auto-navigate to the first page when a user clicks a navigation group.
 
 ## Search
 
@@ -135,7 +135,7 @@ Document your API endpoints.
 - **MDX server**: Custom MDX server endpoints for the API playground.
 - **Playground display**: Show the interactive API playground, the simple API playground, or no API playground.
 - **Proxy server**: Enable or disable the proxy server for API requests.
-- **`mdx.schema`**: Whether to render the schema section on API reference pages.
+- **MDX schema**: Whether to render the schema section on API reference pages.
 
 ## Redirects
 
@@ -174,7 +174,7 @@ To edit or remove an existing redirect, hover over the row and use the inline ed
 
 Configure metatags and indexing for search engines.
 
-- **metatags**: Custom `<meta>` tags applied across your site. Add key-value pairs for tags like `og:image` or `twitter:card`.
+- **Metatags**: Custom `<meta>` tags applied across your site. Add key-value pairs for tags like `og:image` or `twitter:card`.
 - **Indexing**: Choose whether to index hidden pages.
 
 ## Analytics