implement testsNameItemEditor funktionalität

src/lib/components/NameItemEditor.svelte

@@ -11,11 +11,10 @@
 	}
 
 	export let list: ListItem[] = [];
-	export let currentName: string = '';
+	export let currentName: string;
 	export let onSave: (n: string, o: string) => unknown = () => {};
 	export let onDelete: (n: string) => unknown = () => {};
 
-	// lokaler State
 	let localName = currentName;
 	let isEditing = false;
 	let inputRef: HTMLInputElement | null = null;