Prevent draggable image.

nicegui/elements/interactive_image.js

@@ -1,11 +1,7 @@
 export default {
   template: `
     <div style="position:relative">
-      <img 
-        :src="src"
-        style="width:100%; height:100%;" 
-        v-on="onEvents"
-      />
+      <img :src="src" style="width:100%; height:100%;"  v-on="onEvents" draggable="false" />
       <svg v-if="cross" style="position:absolute;top:0;left:0;pointer-events:none" :viewBox="viewBox">
         <g :style="{ display: cssDisplay } ">
           <line :x1="x" y1="0" :x2="x" y2="100%" stroke="black" />