Implement Talk has read federation (#5636)

* Talk read

* fix

* 複数のRead ActivityはCollectionとして送るように

* あ

src/remote/activitypub/renderer/read.ts

@@ -0,0 +1,9 @@
+import config from '../../../config';
+import { ILocalUser } from '../../../models/entities/user';
+import { MessagingMessage } from '../../../models/entities/messaging-message';
+
+export const renderReadActivity = (user: ILocalUser, message: MessagingMessage) => ({
+	type: 'Read',
+	actor: `${config.url}/users/${user.id}`,
+	object: message.uri
+});