implementation of images in trivio

added implementation of images in trivios. Lets user add images locally. The images are saved into backend and rendered in frontend.

src/components/QuestionBox.vue

@@ -20,7 +20,8 @@ const props = defineProps({
         </div>
         </div>
       </div>
-      <img src="/src/components/icons/cat.png" alt="Question picture">
+      <img v-if="image":src="image" alt="Question picture">
+      <img v-else src="/src/assets/trivio.svg" alt="no picture">
     </div>
   </div>
 </template>