Add '(you)' label for self in new DM user list

Wrap in WidgetSpan with ExcludeSemantics so screen readers ignore it.

Author: Mannatgupta666

lib/widgets/new_dm_sheet.dart

@@ -395,6 +395,8 @@ class _NewDmUserListItem extends StatelessWidget {
   Widget build(BuildContext context) {
     final store = PerAccountStoreWidget.of(context);
     final designVariables = DesignVariables.of(context);
+    final selfUserId = store.selfUserId ;
+    final labelColor = designVariables.labelMenuButton ;
     return Material(
       clipBehavior: Clip.antiAlias,
       borderRadius: BorderRadius.circular(10),
@@ -421,9 +423,14 @@ class _NewDmUserListItem extends StatelessWidget {
             SizedBox(width: 8),
             Expanded(
               child: Text.rich(
-                TextSpan(text: store.userDisplayName(userId), children: [
+                TextSpan(text: store.userDisplayName(userId),children: [
+                  if (userId == selfUserId)WidgetSpan (
+                    alignment: PlaceholderAlignment.middle,
+                    child:ExcludeSemantics(child: Text(' (you)',
+                    style: TextStyle(
+                      color: labelColor.withValues(alpha: 0.6))))),
                   UserStatusEmoji.asWidgetSpan(userId: userId, fontSize: 17,
-                    textScaler: MediaQuery.textScalerOf(context)),
+                    textScaler: MediaQuery.textScalerOf(context),),
                 ]),
                 style: TextStyle(
                   fontSize: 17,

test/widgets/new_dm_sheet_test.dart

@@ -136,6 +136,35 @@ void main() {
       check(find.byIcon(ZulipIcons.check_circle_checked)).findsNothing();
     });
 
+    testWidgets('shows (you) label for self user in new DM list', (tester) async { 
+      final self = eg.user(fullName: 'Self User',email: '[email protected]'); 
+      final other = eg.user(fullName: 'Other User',email: '[email protected]'); 
+      await setupSheet(tester, selfUser: self, users: [self, other]); 
+      // Self user's name is shown 
+      check(findText(includePlaceholders: false, 'Self User')).findsOne(); 
+      // "(you)" label is shown for self 
+      final youTextFinder = find.byWidgetPredicate(
+        (w) => w is Text && (w.data?.contains('(you)') ?? false)); 
+      check(youTextFinder).findsOne(); 
+      // Other user does NOT get "(you)" 
+      check(findText(includePlaceholders: false, 'Other User')).findsOne(); 
+    });
+
+    testWidgets('does not show (you) label for non-self users', (tester) async {
+       final self = eg.user(fullName: 'Self User',email: '[email protected]'); 
+       final other = eg.user(fullName: 'Other User',email: '[email protected]'); 
+       await setupSheet(tester, selfUser: self, users: [other]); 
+       await tester.pump(); 
+       // Other user's name is shown 
+       check(findText(includePlaceholders: false, 'Other User')).findsOne(); 
+       // "(you)" must not appear at all 
+       final otherRow = find.ancestor(
+        of: findText(includePlaceholders: false, 'Other User'),matching: find.byType(Row));
+       final youInOtherRow = find.descendant(of: otherRow, matching: find.byWidgetPredicate(
+        (w) => w is Text && (w.data?.contains('(you)') ?? false)));
+       check(youInOtherRow).findsNothing();
+    });
+
     testWidgets('shows filtered users based on search', (tester) async {
       await setupSheet(tester, users: testUsers);
       await tester.enterText(find.byType(TextField), 'Alice');