Fix flush

packages/backend/src/server/web/views/flush.pug

@@ -4,9 +4,12 @@ html
 	head
 		meta(charset='utf-8')
 		meta(name='application-name' content='Misskey')
-		title Flushing Misskey
+		title Misskey Repair Tool
 		style
 			include ../flush.css
+
+	body
+		#msg
 		script.
 			const msg = document.getElementById('msg');
 			const successText = `\nSuccess Flush! <a href="/">Back to Misskey</a>\n成功しました。<a href="/">Misskeyを開き直してください。</a>`;
@@ -50,6 +53,3 @@ html
 			function message(text) {
 				msg.insertAdjacentHTML('beforeend', `<p>[${(new Date()).toString()}] ${text.replace(/\n/g,'<br>')}</p>`)
 			}
-
-	body
-		#msg