Add version number to appbar

lib/features/common/common.dart

@@ -2,3 +2,4 @@ export 'confirmation_dialogs.dart';
 export 'custom_app_bar.dart';
 export 'profile_tile.dart';
 export 'qr_code_scanner_screen.dart';
+export 'runtime_details.dart';

lib/features/common/runtime_details.dart

@@ -32,6 +32,8 @@ class RuntimeDetails with _$RuntimeDetails {
     required String clashVersion,
   }) = _RuntimeDetails;
 
+  String get fullVersion => version + buildNumber;
+
   factory RuntimeDetails.fromJson(Map<String, dynamic> json) =>
       _$RuntimeDetailsFromJson(json);
 }