TF-1616: Fix drag and drop email to mailbox

(cherry picked from commit 324a28c958dd9b4b9f25d7ce18c6a2a4a5c18531)

lib/features/mailbox/presentation/mailbox_controller.dart

@@ -93,6 +93,8 @@ class MailboxController extends BaseMailboxController with MailboxActionHandlerM
   final SubscribeMultipleMailboxInteractor _subscribeMultipleMailboxInteractor;
 
   final currentSelectMode = SelectMode.INACTIVE.obs;
+  final _activeScrollTop = RxBool(false);
+  final _activeScrollBottom = RxBool(true);
 
   final _openMailboxEventController = StreamController<OpenMailboxViewEvent>();
   final mailboxListScrollController = ScrollController();
@@ -130,8 +132,8 @@ class MailboxController extends BaseMailboxController with MailboxActionHandlerM
     _openMailboxEventController.stream.throttleTime(const Duration(milliseconds: 800)).listen((event) {
       _handleOpenMailbox(event.buildContext, event.presentationMailbox);
     });
-
     _initCollapseMailboxCategories();
+    mailboxListScrollController.addListener(_mailboxListScrollControllerListener);
     super.onReady();
   }
 
@@ -1127,4 +1129,33 @@ class MailboxController extends BaseMailboxController with MailboxActionHandlerM
       }
     }
   }
+
+  void _mailboxListScrollControllerListener() {
+    _handleScrollTop();
+    _handleScrollBottom();
+  }
+
+  void _handleScrollTop() {
+    if (mailboxListScrollController.position.pixels == 0) {
+      _activeScrollTop.value = false;
+    }
+
+    if (mailboxListScrollController.position.pixels > 40) {
+      _activeScrollTop.value = true;
+    }
+  }
+
+  void _handleScrollBottom() {
+    if (mailboxListScrollController.position.pixels - mailboxListScrollController.position.maxScrollExtent == 0) {
+      _activeScrollBottom.value = false;
+    }
+
+    if (mailboxListScrollController.position.maxScrollExtent - mailboxListScrollController.position.pixels > 40) {
+      _activeScrollBottom.value = true;
+    }
+  }
+
+  bool get activeScrollTop => _activeScrollTop.value;
+
+  bool get activeScrollBottom => _activeScrollBottom.value;
 }

lib/features/mailbox/presentation/mailbox_view_web.dart

@@ -212,7 +212,7 @@ class MailboxView extends GetWidget<MailboxController>
             })
           ])
         ),
-        Obx(() => controller.mailboxDashBoardController.isDraggingMailbox
+        Obx(() => controller.mailboxDashBoardController.isDraggingMailbox && controller.activeScrollTop
             ? Align(
                 alignment: Alignment.topCenter,
                 child: InkWell(
@@ -221,7 +221,7 @@ class MailboxView extends GetWidget<MailboxController>
                   child: Container(
                     height: 40)))
             : const SizedBox.shrink()),
-        Obx(() => controller.mailboxDashBoardController.isDraggingMailbox
+        Obx(() => controller.mailboxDashBoardController.isDraggingMailbox && controller.activeScrollBottom
             ? Align(
                 alignment: Alignment.bottomCenter,
                 child: InkWell(

lib/features/mailbox_dashboard/presentation/controller/mailbox_dashboard_controller.dart

@@ -164,6 +164,7 @@ class MailboxDashBoardController extends ReloadableController {
   final vacationResponse = Rxn<VacationResponse>();
   final routerParameters = Rxn<Map<String, String?>>();
   final _isDraggingMailbox = RxBool(false);
+  final _triggerDropMailbox = RxBool(true);
   final searchMailboxActivated = RxBool(false);
   Session? sessionCurrent;
   Map<Role, MailboxId> mapDefaultMailboxIdByRole = {};
@@ -1562,6 +1563,12 @@ class MailboxDashBoardController extends ReloadableController {
     _isDraggingMailbox.value = isDragging;
   }
 
+  void onTriggerDropMailbox(bool onScroll) {
+    _triggerDropMailbox.value = onScroll;
+  }
+
+  bool get triggerDropMailbox => _triggerDropMailbox.value;
+
   bool get isDraggingMailbox => _isDraggingMailbox.value;
 
   void _handleSendEmailFailure(SendEmailFailure failure) {