Fix iteration of items

aleksis/core/frontend/components/generic/dialogs/DeleteMultipleDialog.vue

@@ -94,7 +94,8 @@ export default {
 
       const storedDataKey = Object.keys(storedData)[0];
 
-      for (const item in this.items) {
+      for (const item of this.items) {
+        console.debug("Removing item from store:", item);
         // Remove item from stored data
         const index = storedData[storedDataKey].findIndex(
             (m) => m.id === item.id