fix attributeview component switching

ui/src/components/widgets/Table.svelte

@@ -11,13 +11,14 @@
   const dispatch = createEventDispatcher();
   const params = useParams();
 
-  export let columns = "attribute, value";
+  export let columns: string;
   export let header = true;
 
   export let entries: UpEntry[];
   export let editable = false;
 
   // Display
+  $: columns = columns || "attribute, value";
   $: showEntity = columns.includes("entity");
   $: showAttribute = columns.includes("attribute");
   $: showValue = columns.includes("value");