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/vite.config.ts b/client/vite.config.ts
index f62be3c..e984a81 100644
--- a/client/vite.config.ts
+++ b/client/vite.config.ts
@@ -24,7 +24,7 @@
     host: '0.0.0.0',
     port: 3000,
     proxy: {
-      '^/(api)|^/(auth)|^/(setup)': {
+      '^/(api)|^/(setup)': {
         target: 'http://localhost:3001',
         secure: false,
       },