CR fixes: official Catppuccin Mocha colors + DHC dialog fabConnectedColor

- Correct Catppuccin Mocha palette to official values: surface = mantle
  (#181825), surfaceVariant = surface0 (#313244), and primary_dark to a
  real palette color (sapphire #74C7EC) instead of a custom mauve tint.
- Add the missing fabConnectedColor to the Dark High Contrast dialog
  styles (day + night) for consistency with the app variants and the
  other modern dialog themes.

(CodeRabbit's 'missing theme styles' findings were false positives \u2014 all
12 styles exist and were verified building and on-device.)

Author: hawkff

app/src/main/res/values-night/themes.xml

@@ -451,6 +451,7 @@
         <item name="testFailColor">@color/dhc_red</item>
         <item name="speedTextColor">@color/dhc_accent</item>
         <item name="fabStoppedColor">@color/dhc_on_primary</item>
+        <item name="fabConnectedColor">@color/dhc_on_primary</item>
         <item name="statusDetailColor">@color/dhc_accent</item>
         <item name="statusTestingColor">@color/dhc_yellow</item>
         <item name="routeProxyColor">@color/dhc_blue</item>

app/src/main/res/values/colors.xml

@@ -489,25 +489,25 @@
     <color name="ayu_300">#FFA759</color>
     <color name="card_elevated_ayu">#232834</color>
 
-    <!-- Catppuccin Mocha (official palette). -->
+    <!-- Catppuccin Mocha (official palette: https://catppuccin.com/palette). -->
     <color name="catppuccin_primary">#CBA6F7</color>       <!-- mauve -->
-    <color name="catppuccin_primary_dark">#B4A0E5</color>
-    <color name="catppuccin_on_primary">#1E1E2E</color>
+    <color name="catppuccin_primary_dark">#74C7EC</color>  <!-- sapphire (status bar) -->
+    <color name="catppuccin_on_primary">#1E1E2E</color>    <!-- base -->
     <color name="catppuccin_accent">#89B4FA</color>        <!-- blue -->
     <color name="catppuccin_blue">#89B4FA</color>
-    <color name="catppuccin_background">#1E1E2E</color>
-    <color name="catppuccin_surface">#28283D</color>
-    <color name="catppuccin_surface_variant">#313244</color>
-    <color name="catppuccin_container">#45475A</color>
-    <color name="catppuccin_on_surface">#CDD6F4</color>
-    <color name="catppuccin_on_surface_variant">#BAC2DE</color>
-    <color name="catppuccin_outline">#6C7086</color>
+    <color name="catppuccin_background">#1E1E2E</color>    <!-- base -->
+    <color name="catppuccin_surface">#181825</color>       <!-- mantle -->
+    <color name="catppuccin_surface_variant">#313244</color> <!-- surface0 -->
+    <color name="catppuccin_container">#45475A</color>    <!-- surface1 -->
+    <color name="catppuccin_on_surface">#CDD6F4</color>   <!-- text -->
+    <color name="catppuccin_on_surface_variant">#BAC2DE</color> <!-- subtext1 -->
+    <color name="catppuccin_outline">#6C7086</color>      <!-- overlay0 -->
     <color name="catppuccin_outline_variant">#313244</color>
     <color name="catppuccin_green">#A6E3A1</color>
     <color name="catppuccin_red">#F38BA8</color>
     <color name="catppuccin_yellow">#F9E2AF</color>
     <color name="catppuccin_100">#45475A</color>
     <color name="catppuccin_300">#6C7086</color>
-    <color name="card_elevated_catppuccin">#28283D</color>
+    <color name="card_elevated_catppuccin">#181825</color>
 
 </resources>

app/src/main/res/values/themes.xml

@@ -1241,6 +1241,7 @@
         <item name="testFailColor">@color/dhc_red</item>
         <item name="speedTextColor">@color/dhc_accent</item>
         <item name="fabStoppedColor">@color/dhc_on_primary</item>
+        <item name="fabConnectedColor">@color/dhc_on_primary</item>
         <item name="statusDetailColor">@color/dhc_accent</item>
         <item name="statusTestingColor">@color/dhc_yellow</item>
         <item name="routeProxyColor">@color/dhc_blue</item>