TF-2241 Change language setting subtitle

(cherry picked from commit 18b8c30e07c5c17a4fe2e81bc9dfe3936b520092)

lib/l10n/intl_messages.arb

@@ -1,5 +1,5 @@
 {
-  "@@last_modified": "2023-11-25T17:54:59.449967",
+  "@@last_modified": "2023-12-26T18:03:20.080763",
   "initializing_data": "Initializing data...",
   "@initializing_data": {
     "type": "text",
@@ -1530,8 +1530,8 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "languageAndRegionSubtitle": "Set the language, time zone, time format you use on Twake Mail.",
-  "@languageAndRegionSubtitle": {
+  "languageSubtitle": "Set the language you use on Twake Mail.",
+  "@languageSubtitle": {
     "type": "text",
     "placeholders_order": [],
     "placeholders": {}

lib/main/localizations/app_localizations.dart

@@ -1561,10 +1561,10 @@ class AppLocalizations {
         name: 'languageAndRegion');
   }
 
-  String get languageAndRegionSubtitle {
+  String get languageSubtitle {
     return Intl.message(
-        'Set the language, time zone, time format you use on Twake Mail.',
-        name: 'languageAndRegionSubtitle');
+        'Set the language you use on Twake Mail.',
+        name: 'languageSubtitle');
   }
 
   String get language {