TF-656 add new intl message request read receipt

lib/l10n/intl_messages.arb

@@ -2283,5 +2283,11 @@
     "type": "text",
     "placeholders_order": [],
     "placeholders": {}
+  },
+  "requestReadReceipt": "Request read receipt",
+  "@requestReadReceipt": {
+    "type": "text",
+    "placeholders_order": [],
+    "placeholders": {}
   }
 }

lib/main/localizations/app_localizations.dart

@@ -2362,4 +2362,11 @@ class AppLocalizations {
         'Select parent folder',
         name: 'selectParentFolder');
   }
+
+  String get requestReadReceipt {
+    return Intl.message(
+      'Request read receipt',
+      name: 'requestReadReceipt',
+    );
+  }
 }