dispatch hitObject when no object is hit

src/three/utils/ObjectPicker.ts

         this.updateMouseFromEvent(event)
 
         const intersects = this.checkIntersection()
-        if (intersects)
-            this.dispatchEvent({type: 'hitObject', time: this._mouseUpTime, intersects})
+        if (intersects) this.dispatchEvent({type: 'hitObject', time: this._mouseUpTime, intersects})
+        else this.dispatchEvent({type: 'hitObject', time: this._mouseUpTime, intersects: {selectedObject: null, intersect: null, intersects: []}})
         this.selectedObject = intersects?.selectedObject || null
     }