TF-3264 Fix composer drag drop all modes (#3279)

lib/features/composer/presentation/composer_controller.dart

@@ -237,6 +237,7 @@ class ComposerController extends BaseController
   void onInit() {
     super.onInit();
     if (PlatformInfo.isWeb) {
+      responsiveContainerKey = GlobalKey();
       richTextWebController = getBinding<RichTextWebController>();
       responsiveContainerKey = GlobalKey();
       menuMoreOptionController = CustomPopupMenuController();
@@ -286,6 +287,7 @@ class ComposerController extends BaseController
       richTextMobileTabletController = null;
     }
     _identityContentOnOpenPolicy = SignatureStatus.editedAvailable;
+    responsiveContainerKey = null;
     super.onClose();
   }
 
@@ -2246,6 +2248,12 @@ class ComposerController extends BaseController
     }
   }
 
+  void handleOnDragOverHtmlEditorWeb(List<dynamic>? types) {
+    if (types.validateFilesTransfer) {
+      mailboxDashBoardController.localFileDraggableAppState.value = DraggableAppState.active;
+    }
+  }
+
   void onLocalFileDropZoneListener({
     required BuildContext context,
     required DropDoneDetails details,