fix: some internal types are double-wrapped in DxEvent<> (DevExpress#30819)

Author: VasilyStrelyaev

packages/devextreme/js/__internal/ui/overlay/overlay.ts

@@ -73,7 +73,8 @@ const PREVENT_SAFARI_SCROLLING_CLASS = 'dx-prevent-safari-scrolling';
 
 type AnimationDirection = 'to' | 'from';
 
-export type PointerLikeEvent = DxEvent<MouseEvent | PointerEvent | TouchEvent>;
+type PointerLikeNativeEvents = MouseEvent | PointerEvent | TouchEvent;
+export type PointerLikeEvent = DxEvent<PointerLikeNativeEvents>;
 
 type EventHandler = (e: PointerLikeEvent) => boolean | undefined;
 
@@ -136,7 +137,7 @@ export type PositioningEvent<
   TPosition = OverlayProperties['position'],
 > = NativeEventInfo<
   Overlay,
-  PointerLikeEvent
+  PointerLikeNativeEvents
 > & {
   readonly position: TPosition;
 };

packages/devextreme/js/__internal/ui/splitter/resize_handle.ts

@@ -319,31 +319,31 @@ class ResizeHandle extends Widget<ResizeHandleProperties> {
     this._attachEventHandlers();
   }
 
-  _resizeStartHandler(e: DxEvent<InteractionEvent>): void {
+  _resizeStartHandler(e: InteractionEvent): void {
     this._getAction(RESIZE_EVENT.onResizeStart)({
       event: e,
     });
   }
 
-  _resizeHandler(e: DxEvent<InteractionEvent>): void {
+  _resizeHandler(e: InteractionEvent): void {
     this._getAction(RESIZE_EVENT.onResize)({
       event: e,
     });
   }
 
-  _resizeEndHandler(e: DxEvent<InteractionEvent>): void {
+  _resizeEndHandler(e: InteractionEvent): void {
     this._getAction(RESIZE_EVENT.onResizeEnd)({
       event: e,
     });
   }
 
-  _collapsePrevHandler(e: DxEvent<InteractionEvent>): void {
+  _collapsePrevHandler(e: InteractionEvent): void {
     this._getAction(COLLAPSE_EVENT.onCollapsePrev)({
       event: e,
     });
   }
 
-  _collapseNextHandler(e: DxEvent<InteractionEvent>): void {
+  _collapseNextHandler(e: InteractionEvent): void {
     this._getAction(COLLAPSE_EVENT.onCollapseNext)({
       event: e,
     });