Initial commit: TimeReg Flutter app med Firebase backend

- Opprettet Flutter-prosjekt med alle nødvendige avhengigheter
- Implementert datamodeller (User, TimeRegistration, TariffProfile, Deviation, AuditLog)
- Implementert tjenester (AuthService, TimeService)
- Implementert Riverpod providers for state management
- Opprettet autentiseringsskjermer (login, signup, reset password)
- Opprettet hjemmeskjerm med timer-funksjonalitet
- Opprettet placeholder-skjermer for historikk, rapporter og profil
- Lagt til norsk dokumentasjon i README

windows/flutter/generated_plugin_registrant.cc

@@ -0,0 +1,29 @@
+//
+//  Generated file. Do not edit.
+//
+
+// clang-format off
+
+#include "generated_plugin_registrant.h"
+
+#include <cloud_firestore/cloud_firestore_plugin_c_api.h>
+#include <firebase_auth/firebase_auth_plugin_c_api.h>
+#include <firebase_core/firebase_core_plugin_c_api.h>
+#include <firebase_storage/firebase_storage_plugin_c_api.h>
+#include <share_plus/share_plus_windows_plugin_c_api.h>
+#include <url_launcher_windows/url_launcher_windows.h>
+
+void RegisterPlugins(flutter::PluginRegistry* registry) {
+  CloudFirestorePluginCApiRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("CloudFirestorePluginCApi"));
+  FirebaseAuthPluginCApiRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("FirebaseAuthPluginCApi"));
+  FirebaseCorePluginCApiRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("FirebaseCorePluginCApi"));
+  FirebaseStoragePluginCApiRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("FirebaseStoragePluginCApi"));
+  SharePlusWindowsPluginCApiRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("SharePlusWindowsPluginCApi"));
+  UrlLauncherWindowsRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("UrlLauncherWindows"));
+}