refactor(frontend): Formまわりの型強化 (#16260)

* refactor(frontend): Formまわりの型強化

* fix

* avoid non-null assertion and add null check for safety

* refactor

* avoid non-null assertion and add null check for safety

* Update clip.vue

---------

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

packages/frontend/src/pages/registry.keys.vue

@@ -79,7 +79,9 @@ async function createKey() {
 			default: scope.value.join('/'),
 		},
 	});
+
 	if (canceled) return;
+
 	os.apiWithDialog('i/registry/set', {
 		scope: result.scope.split('/'),
 		key: result.key,