Bug 1861242 - Strings for add-ons general availability Nimbus message.

(cherry picked from commit 5e888b922960cf59b3392c12fe1820d2c30e8775)

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

@@ -668,6 +668,14 @@
     <!-- Wallpaper onboarding dialog learn more button text. The button navigates to the wallpaper settings screen. -->
     <string name="wallpapers_onboarding_dialog_explore_more_button_text">Explore more wallpapers</string>
 
+    <!-- Add-ons general availability nimbus message-->
+    <!-- Title of the Nimbus message for add-ons general availability-->
+    <string name="addon_ga_message_title" tools:ignore="UnusedResources">New add-ons now available</string>
+    <!-- Body of the Nimbus message for add-ons general availability. 'Firefox' intentionally hardcoded here-->
+    <string name="addon_ga_message_body" tools:ignore="UnusedResources">Check out 100+ new extensions that let you make Firefox your own.</string>
+    <!-- Button text of the Nimbus message for add-ons general availability. -->
+    <string name="addon_ga_message_button" tools:ignore="UnusedResources">Explore add-ons</string>
+
     <!-- Add-on Installation from AMO-->
     <!-- Error displayed when user attempts to install an add-on from AMO (addons.mozilla.org) that is not supported -->
     <string name="addon_not_supported_error" moz:removedIn="120" tools:ignore="UnusedResources">Add-on is not supported</string>