Lint frontend

frontend/components/item/Tree.vue

@@ -108,14 +108,18 @@ function handleRefresh() {
         height="64"
         :alt="tree.data.toString()"
         :src="CDRAGON_BASE + mapPath(itemMap.get(tree.data).iconPath)"
-      >
+      />
       <h3 style="width: fit-content; margin: auto; margin-bottom: 10px">
         {{ ((tree.count / parentCount!!) * 100).toFixed(0) }}%
       </h3>
     </div>
 
     <div style="margin-left: 30px">
-      <div v-for="child in tree.children" style="width: fit-content; height: fit-content">
+      <div
+        v-for="child in tree.children"
+        :key="child.data"
+        style="width: fit-content; height: fit-content"
+      >
         <ItemTree
           :tree="child"
           :parent-count="tree.count"