翻訳の抜けを修正その2 (#5893)

* Missing translation

* use npx

* ✌️

* Update ja-JP.yml

* Update signup.vue

* Update ja-JP.yml

* Update messaging-room.vue

* Update ja-JP.yml

* Update signup.vue

* Update ja-JP.yml

* Update signin.vue

* Update ja-JP.yml

* Update index.vue

* Update ja-JP.yml

* Update signup.vue

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>

src/client/scripts/please-login.ts

@@ -2,7 +2,7 @@ export default ($root: any) => {
 	if ($root.$store.getters.isSignedIn) return;
 
 	$root.dialog({
-		title: $root.$t('@.signin-required'),
+		title: $root.$t('signinRequired'),
 		text: null
 	});