[fenix] For https://github.com/mozilla-mobile/fenix/issues/23498 improve logo content description comments for wallpapers

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

@@ -468,7 +468,8 @@
     <string name="wallpaper_tap_to_change_switch_label">Tap logo to change wallpaper</string>
     <!-- Description for switch which toggles the "tap-to-switch" behavior on home screen logo -->
     <string name="wallpaper_tap_to_change_switch_description">Cycle through and update image without leaving the homepage.</string>
-    <!-- Content description for switch which toggles the "tap-to-switch" behavior on home screen logo -->
+    <!-- This is the accessibility content description for the wallpapers functionality. Users are
+    able to tap on the app logo in the home screen and can switch to different wallpapers by tapping. -->
     <string name="wallpaper_logo_content_description">Firefox logo - change the wallpaper, button</string>
 
     <!-- Add-on Installation from AMO-->