change proxy

Co-authored-by: Alexander Rudolph <drblaui@users.noreply.github.com>
Co-authored-by: brendanlaschke <brendanlaschke@users.noreply.github.com>

client/package.json

@@ -65,5 +65,5 @@
   "overrides": {
     "mini-css-extract-plugin": "2.4.5"
   },
-  "proxy": "http://localhost:4000/"
+  "proxy": "http://server:4000"
 }