refactoring

Resolve #7779

packages/backend/src/server/web/manifest.ts

@@ -0,0 +1,15 @@
+import * as Koa from 'koa';
+import * as manifest from './manifest.json';
+import { fetchMeta } from '@/misc/fetch-meta';
+
+module.exports = async (ctx: Koa.Context) => {
+	const json = JSON.parse(JSON.stringify(manifest));
+
+	const instance = await fetchMeta(true);
+
+	json.short_name = instance.name || 'Misskey';
+	json.name = instance.name || 'Misskey';
+
+	ctx.set('Cache-Control', 'max-age=300');
+	ctx.body = json;
+};