[fenix] For https://github.com/mozilla-mobile/fenix/issues/23317 - Update tab tray menu button color to @color/fx_mobile_icon_color_primary

app/src/main/res/layout/component_tabstray2.xml

@@ -121,7 +121,7 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintTop_toTopOf="@id/tab_layout"
         app:srcCompat="@drawable/ic_menu"
-        app:tint="@color/tab_tray_heading_icon_menu_normal_theme" />
+        app:tint="@color/fx_mobile_icon_color_primary" />
 
     <View
         android:id="@+id/divider"

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

@@ -62,7 +62,7 @@
 
     <!-- Icon -->
     <!-- Primary icon -->
-    <color name="fx_mobile_icon_color_primary" tools:ignore="UnusedResources">@color/photonLightGrey05</color>
+    <color name="fx_mobile_icon_color_primary">@color/photonLightGrey05</color>
     <!-- Inactive tab -->
     <color name="fx_mobile_icon_color_primary_inactive">@color/photonLightGrey05A60</color>
     <!-- Secondary icon -->
@@ -135,7 +135,6 @@
     <!-- Tab tray -->
     <color name="tab_tray_item_background_normal_theme">@color/photonDarkGrey80</color>
     <color name="tab_tray_item_selected_background_normal_theme">@color/tab_tray_item_selected_background_dark_theme</color>
-    <color name="tab_tray_heading_icon_menu_normal_theme">@color/photonLightGrey05</color>
     <color name="tab_tray_item_thumbnail_background_normal_theme">@color/photonDarkGrey50</color>
     <color name="tab_tray_item_thumbnail_icon_normal_theme">@color/photonDarkGrey05</color>
 

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

@@ -62,7 +62,7 @@
 
     <!-- Icon -->
     <!-- Primary icon -->
-    <color name="fx_mobile_icon_color_primary" tools:ignore="UnusedResources">@color/photonDarkGrey90</color>
+    <color name="fx_mobile_icon_color_primary">@color/photonDarkGrey90</color>
     <!-- Inactive tab -->
     <color name="fx_mobile_icon_color_primary_inactive">@color/photonDarkGrey90A60</color>
     <!-- Secondary icon -->
@@ -202,7 +202,6 @@
     <!-- Tab tray -->
     <color name="tab_tray_item_background_normal_theme">@color/photonLightGrey10</color>
     <color name="tab_tray_item_selected_background_normal_theme">#E5DFF4</color>
-    <color name="tab_tray_heading_icon_menu_normal_theme">@color/accent_normal_theme</color>
     <color name="tab_tray_item_thumbnail_background_normal_theme">@color/photonLightGrey10</color>
     <color name="tab_tray_item_thumbnail_icon_normal_theme">@color/photonLightGrey60</color>