Integrate new server authentication to client

Changes:
- Use server authentication REST API
- Log in automatically after registration
- Store token in localStorage
- Give feedback to user if registration or login fails

GitLab: #75
Change-Id: Ib90e5b911621567c6825af5e275920d703cdfe88
diff --git a/client/src/pages/Messenger.tsx b/client/src/pages/Messenger.tsx
index 6aeb840..0d13d5a 100644
--- a/client/src/pages/Messenger.tsx
+++ b/client/src/pages/Messenger.tsx
@@ -37,7 +37,7 @@
 };
 
 const Messenger = (props: MessengerProps) => {
-  const { refresh } = useAppSelector((state) => state.app);
+  const { refresh } = useAppSelector((state) => state.userInfo);
 
   const [conversations, setConversations] = useState<Conversation[] | undefined>(undefined);
   const [searchQuery, setSearchQuery] = useState('');