feat(server): Fetch icon url of an instance (#6591)

* feat(server): Fetch icon url of an instance

Resolve #6589

* chore: Rename the function

src/remote/activitypub/models/person.ts

@@ -26,7 +26,7 @@ import { validActor } from '../../../remote/activitypub/type';
 import { getConnection } from 'typeorm';
 import { ensure } from '../../../prelude/ensure';
 import { toArray } from '../../../prelude/array';
-import { fetchNodeinfo } from '../../../services/fetch-nodeinfo';
+import { fetchInstanceMetadata } from '../../../services/fetch-instance-metadata';
 
 const logger = apLogger;
 
@@ -204,7 +204,7 @@ export async function createPerson(uri: string, resolver?: Resolver): Promise<Us
 	registerOrFetchInstanceDoc(host).then(i => {
 		Instances.increment({ id: i.id }, 'usersCount', 1);
 		instanceChart.newUser(i.host);
-		fetchNodeinfo(i);
+		fetchInstanceMetadata(i);
 	});
 
 	usersChart.update(user!, true);