TF-3985 Display Increase your space button when premium is available on web desktop

lib/features/base/widget/premium/increase_space_button_widget.dart

@@ -0,0 +1,41 @@
+import 'package:core/presentation/extensions/color_extension.dart';
+import 'package:core/presentation/resources/image_paths.dart';
+import 'package:core/presentation/utils/theme_utils.dart';
+import 'package:core/presentation/views/dialog/confirm_dialog_button.dart';
+import 'package:flutter/material.dart';
+import 'package:tmail_ui_user/main/localizations/app_localizations.dart';
+
+class IncreaseSpaceButtonWidget extends StatelessWidget {
+  final ImagePaths imagePaths;
+  final VoidCallback onTapAction;
+  final EdgeInsetsGeometry? margin;
+
+  const IncreaseSpaceButtonWidget({
+    super.key,
+    required this.imagePaths,
+    required this.onTapAction,
+    this.margin,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      constraints: const BoxConstraints(minWidth: 193),
+      height: 44,
+      margin: margin,
+      child: ConfirmDialogButton(
+        label: AppLocalizations.of(context).increaseYourSpace,
+        borderColor: AppColor.m3SysLightSecondaryBlue,
+        icon: imagePaths.icPremium,
+        iconSize: 22,
+        iconColor: Colors.transparent,
+        textStyle: ThemeUtils.textStyleM3BodyMedium.copyWith(
+          color: AppColor.blue700,
+        ),
+        radius: 7,
+        padding: const EdgeInsetsDirectional.symmetric(horizontal: 8),
+        onTapAction: onTapAction,
+      ),
+    );
+  }
+}

lib/features/mailbox/presentation/mailbox_view_web.dart

@@ -5,8 +5,10 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:tmail_ui_user/features/base/widget/application_version_widget.dart';
+import 'package:tmail_ui_user/features/base/widget/premium/increase_space_button_widget.dart';
 import 'package:tmail_ui_user/features/base/widget/scrollbar_list_view.dart';
 import 'package:tmail_ui_user/features/mailbox/presentation/base_mailbox_view.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/extensions/validate_saas_premium_available_extension.dart';
 import 'package:tmail_ui_user/features/quotas/presentation/quotas_view.dart';
 import 'package:tmail_ui_user/main/localizations/app_localizations.dart';
 
@@ -35,6 +37,23 @@ class MailboxView extends BaseMailboxView {
                 : _buildListMailbox(context),
             ),
             const QuotasView(),
+            Obx(() {
+              final isPremiumAvailable =
+                  controller.mailboxDashBoardController.isPremiumAvailable;
+
+              if (isPremiumAvailable) {
+                return IncreaseSpaceButtonWidget(
+                  imagePaths: controller.imagePaths,
+                  margin: const EdgeInsetsDirectional.only(
+                    start: 26,
+                    bottom: 8,
+                  ),
+                  onTapAction: () {},
+                );
+              } else {
+                return const SizedBox.shrink();
+              }
+            }),
             Container(
               alignment: isDesktop
                 ? AlignmentDirectional.center

lib/features/mailbox_dashboard/presentation/extensions/validate_saas_premium_available_extension.dart

@@ -0,0 +1,16 @@
+import 'package:tmail_ui_user/features/home/domain/extensions/session_extensions.dart';
+import 'package:tmail_ui_user/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart';
+
+extension ValidateSaasPremiumAvailableExtension on MailboxDashBoardController {
+  bool get isPremiumAvailable {
+    if (accountId.value == null || sessionCurrent == null) {
+      return false;
+    }
+
+    final saasAccount = sessionCurrent?.getSaaSAccountCapability(
+      accountId.value!,
+    );
+
+    return saasAccount?.isPremiumAvailable ?? false;
+  }
+}

lib/l10n/intl_messages.arb

@@ -1,5 +1,5 @@
 {
-  "@@last_modified": "2025-08-18T13:21:17.206262",
+  "@@last_modified": "2025-09-09T13:12:15.883838",
   "initializing_data": "Initializing data...",
   "@initializing_data": {
     "type": "text",
@@ -4671,5 +4671,11 @@
     "type": "text",
     "placeholders_order": [],
     "placeholders": {}
+  },
+  "increaseYourSpace": "Increase your space",
+  "@increaseYourSpace": {
+    "type": "text",
+    "placeholders_order": [],
+    "placeholders": {}
   }
-}
+}

lib/main/localizations/app_localizations.dart

@@ -4928,4 +4928,11 @@ class AppLocalizations {
       name: 'archiveMessagesFailed',
     );
   }
+
+  String get increaseYourSpace {
+    return Intl.message(
+      'Increase your space',
+      name: 'increaseYourSpace',
+    );
+  }
 }