TF-3189 new option to copy a folder's subaddress

lib/main/localizations/app_localizations.dart

@@ -800,6 +800,12 @@ class AppLocalizations {
         name: 'email_address_copied_to_clipboard');
   }
 
+  String get emailSubaddressCopiedToClipboard {
+    return Intl.message(
+        'Email subaddress copied to clipboard',
+        name: 'emailSubaddressCopiedToClipboard');
+  }
+
   String get minimize {
     return Intl.message(
         'Minimize',
@@ -2654,6 +2660,13 @@ class AppLocalizations {
     );
   }
 
+  String get copySubaddress {
+    return Intl.message(
+      'Copy subaddress',
+      name: 'copySubaddress',
+    );
+  }
+
   String get regards {
     return Intl.message(
       'Regards',
@@ -3005,6 +3018,13 @@ class AppLocalizations {
     );
   }
 
+  String get errorWhileFetchingSubaddress {
+    return Intl.message(
+      'Error while fetching the subaddress',
+      name: 'errorWhileFetchingSubaddress',
+    );
+  }
+
   String get connectedToTheInternet {
     return Intl.message(
       'Connected to the internet',