Implemented user registration flows

Implemented password reset for admins (when no notification provider is enabled)
Major refactoring

package.json

@@ -35,6 +35,8 @@
     "framer-motion": "^11.3.28",
     "http-status-codes": "^2.3.0",
     "lit": "3.1.4",
+    "moment": "^2.30.1",
+    "moment-timezone": "^0.5.45",
     "next-themes": "^0.3.0",
     "react": "18.3.1",
     "react-dom": "18.3.1",
@@ -118,7 +120,9 @@
     "@vaadin/vaadin-themable-mixin": "$@vaadin/vaadin-themable-mixin",
     "@vaadin/vaadin-lumo-styles": "$@vaadin/vaadin-lumo-styles",
     "@vaadin/vaadin-material-styles": "$@vaadin/vaadin-material-styles",
-    "cron-validator": "$cron-validator"
+    "cron-validator": "$cron-validator",
+    "moment": "$moment",
+    "moment-timezone": "$moment-timezone"
   },
   "vaadin": {
     "dependencies": {
@@ -177,6 +181,6 @@
       "workbox-core": "7.1.0",
       "workbox-precaching": "7.1.0"
     },
-    "hash": "0f5c2e2c0e435bad7d8e5153f11e7caac2a6024927de828fb8a6192acc6fd341"
+    "hash": "9af3f915316df3b36e94b855108f7148a48217645c62f7b0e5a970f3030981b5"
   }
 }