fix: delay timeoutId clear

Author: anthinkingcoder

example/App.vue

@@ -4,9 +4,10 @@
                     width="400"
                     height="300"
                     zoom-width="400"
-                    zoom-height="300"></ImageMagnifier>
+                    zoom-height="300"
+                    :delay-in="300"
+    ></ImageMagnifier>
 </template>
-
 <script>
   import ImageMagnifier from '../src/components/ImageMagnifier.vue'
   import image from './img/DA2D9393-4081-4384-B493-95DA1620C26D.png'