[components] Closes mozilla-mobile/android-components#7879 Provide an…

… error message when

non translation is found for an add-on field.

X-Channel-Revision: [main] mozilla-mobile/android-components@96444dd
X-Channel-Revision: [main] mozilla-mobile/fenix@d039188
X-Channel-Revision: [main] mozilla-mobile/focus-android@a9a09b1
X-Channel-Converted-Revision: [main] mozilla-mobile/firefox-android@3ba3027

_meta/mozilla-mobile-firefox-android-android-components.json

@@ -1,6 +1,6 @@
 {
   "name": "mozilla-mobile/firefox-android/android-components",
   "revs": {
-    "main": "f506f74dfb701569b14cf9b615d22d46b8a4d8c0"
+    "main": "3ba30278c91dd3c7a60f8d604e67763854659007"
   }
 }

mozilla-mobile/android-components/components/feature/addons/src/main/res/values/strings.xml

@@ -160,6 +160,8 @@
     <string name="mozac_add_on_install_progress_caption">Downloading and verifying add-on…</string>
     <!-- Error shown when something unexpected happened while trying to get the add-on list from the server -->
     <string name="mozac_feature_addons_failed_to_query_add_ons">Failed to query Add-ons!</string>
+    <!-- Error shown when unable to find a translation for an add-on field. %1$s is the locale of the user and %2$s is the default language of the add-on -->
+    <string name="mozac_feature_addons_failed_to_translate">Translation not found, for locale %1$s neither default language %2$s</string>
     <!-- Text shown after successfully installed an add-on. %1$s is the add-on name. -->
     <string name="mozac_feature_addons_successfully_installed">Successfully installed %1$s</string>
     <!-- Text shown after failed to install an add-on. %1$s is the add-on name. -->