Store user settings/data on the server and multi user support (#2160)

* wip per user data

* Rename, hide menu

* better error
rework default user

* store pretty

* Add userdata endpoints
Change nodetemplates to userdata

* add multi user message

* make normal arg

* Fix tests

* Ignore user dir

* user tests

* Changed to default to browser storage and add server-storage arg

* fix crash on empty templates

* fix settings added before load

* ignore parse errors

tests-ui/package.json

@@ -24,6 +24,7 @@
   "devDependencies": {
     "@babel/preset-env": "^7.22.20",
     "@types/jest": "^29.5.5",
+    "babel-plugin-transform-import-meta": "^2.2.1",
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0"
   }