chore: flutter 3.29.1 (#16730)

* update dependencies

* update flutter version reference

* update flutter version reference

* update AndroidManifest with flutter_web_auth_2

* chore: lock file flutter version

* fix: ios build

mobile/lib/widgets/search/search_filter/people_picker.dart

@@ -37,7 +37,7 @@ class PeoplePicker extends HookConsumerWidget {
             decoration: InputDecoration(
               contentPadding: const EdgeInsets.only(left: 24),
               filled: true,
-              fillColor: context.primaryColor.withOpacity(0.1),
+              fillColor: context.primaryColor.withValues(alpha: 0.1),
               hintStyle: context.textTheme.bodyLarge?.copyWith(
                 color: context.themeData.colorScheme.onSurfaceSecondary,
               ),

mobile/lib/widgets/search/search_filter/search_filter_chip.dart

@@ -22,7 +22,7 @@ class SearchFilterChip extends StatelessWidget {
         onTap: onTap,
         child: Card(
           elevation: 0,
-          color: context.primaryColor.withOpacity(.5),
+          color: context.primaryColor.withValues(alpha: .5),
           shape: StadiumBorder(
             side: BorderSide(color: context.colorScheme.secondaryContainer),
           ),

mobile/lib/widgets/search/thumbnail_with_info_container.dart

@@ -44,8 +44,8 @@ class ThumbnailWithInfoContainer extends StatelessWidget {
                 colors: [
                   Colors.transparent,
                   label == ''
-                      ? Colors.black.withOpacity(0.1)
-                      : Colors.black.withOpacity(0.5),
+                      ? Colors.black.withValues(alpha: 0.1)
+                      : Colors.black.withValues(alpha: 0.5),
                 ],
                 stops: const [0.0, 1.0],
               ),