admin: polish template item actions

frontend/src/components/admin/AdminTemplatesSection.vue

@@ -257,7 +257,7 @@ function setThumbFileElement(el) {
         <div v-for="item in props.selectedTemplate.items" :key="item.id" class="thumbCard" :data-template-item-id="item.id">
           <div class="thumbCard__media">
             <img class="thumb thumb--template" :src="toApiUrl(item.src)" :alt="item.label" draggable="false" />
-            <button class="thumbCard__deleteBtn" type="button" data-no-drag @click="props.removeTemplateItem(item.id)">X</button>
+            <button class="thumbCard__deleteBtn" type="button" data-no-drag @click="props.removeTemplateItem(item)">X</button>
           </div>
           <input
             v-model="item.draftLabel"