restrict assignable tags to superadmins

frontend/src/lib/components/AssignableTags.svelte

@@ -82,9 +82,9 @@
 					loadCustomTags()
 					sendUserToast('Tag added')
 				}}
-				disabled={newTag.trim() == ''}
+				disabled={newTag.trim() == '' || !$superadmin}
 			>
-				Add
+				Add {#if !superadmin} <span class="text-2xs text-tertiary">EE only</span> {/if}
 			</Button>
 			<span class="text-sm text-primary"
 				>Configure <a href="/workers" target="_blank" class="inline-flex gap-1 items-baseline"

frontend/src/lib/components/WorkspaceGroup.svelte

@@ -139,7 +139,6 @@
 	let drawer: Drawer
 
 	let createdTags: string[] = []
-	let selectedItem: string | undefined = undefined
 </script>
 
 <ConfirmationModal