Some bug fixes

src/remote/activitypub/renderer/follow.ts

@@ -4,5 +4,5 @@ import { IRemoteUser } from '../../../models/user';
 export default ({ username }, followee: IRemoteUser) => ({
 	type: 'Follow',
 	actor: `${config.url}/@${username}`,
-	object: followee.account.uri
+	object: followee.uri
 });

src/remote/activitypub/renderer/key.ts

@@ -6,5 +6,5 @@ export default (user: ILocalUser) => ({
 	id: `${config.url}/@${user.username}/publickey`,
 	type: 'Key',
 	owner: `${config.url}/@${user.username}`,
-	publicKeyPem: extractPublic(user.account.keypair)
+	publicKeyPem: extractPublic(user.keypair)
 });