TF-3586: Upgrade Flutter to 3.27.4

lib/features/mailbox_dashboard/presentation/widgets/advanced_search/advanced_search_filter_overlay.dart

@@ -32,8 +32,8 @@ class AdvancedSearchFilterOverlay extends StatelessWidget {
                 offset: Offset.zero),
             ]
           ),
-          child: SingleChildScrollView(
-            padding: const EdgeInsets.symmetric(vertical: 24, horizontal: 32),
+          child: const SingleChildScrollView(
+            padding: EdgeInsets.symmetric(vertical: 24, horizontal: 32),
             child: AdvancedSearchInputForm(),
           ),
         ),

lib/features/mailbox_dashboard/presentation/widgets/profile_setting/profile_setting_menu_overlay.dart

@@ -42,12 +42,12 @@ class ProfileSettingMenuOverlay extends StatelessWidget {
           borderRadius: const BorderRadius.all(Radius.circular(14)),
           boxShadow: [
             BoxShadow(
-              color: Colors.black.withOpacity(0.3),
+              color: Colors.black.withValues(alpha: 0.3),
               blurRadius: 2,
               spreadRadius: 0,
             ),
             BoxShadow(
-              color: Colors.black.withOpacity(0.15),
+              color: Colors.black.withValues(alpha: 0.15),
               blurRadius: 6,
               spreadRadius: 2,
               offset: const Offset(0, 2),
@@ -67,7 +67,7 @@ class ProfileSettingMenuOverlay extends StatelessWidget {
                 ),
                 const SizedBox(height: 4),
                 Divider(
-                  color: AppColor.profileMenuDivider.withOpacity(0.12),
+                  color: AppColor.profileMenuDivider.withValues(alpha: 0.12),
                   height: 1,
                 ),
                 ...settingActionTypes