Implement Update Question (#4435)

* Update remote votes count

* save updatedAt

* deliver Update

* use renderNote

* use id

* fix typeof

src/remote/activitypub/kernel/index.ts

@@ -2,6 +2,7 @@ import { Object } from '../type';
 import { IRemoteUser } from '../../../models/user';
 import create from './create';
 import performDeleteActivity from './delete';
+import performUpdateActivity from './update';
 import follow from './follow';
 import undo from './undo';
 import like from './like';
@@ -23,6 +24,10 @@ const self = async (actor: IRemoteUser, activity: Object): Promise<void> => {
 		await performDeleteActivity(actor, activity);
 		break;
 
+	case 'Update':
+		await performUpdateActivity(actor, activity);
+		break;
+
 	case 'Follow':
 		await follow(actor, activity);
 		break;