- added 2fa authentication during login. see resources/js/Pages/Auth/login.vue

- added validate() method inside app/Srvices/TwoFactorProvider.ts
- added twoFactorChallenge() method inside app/Controllers/Http/Auth/AuthController.ts for logging in via 2fa-code

resources/js/Dataset.ts

@@ -186,3 +186,9 @@ export interface Identifier {
     updated_at: string; //'2023-03-09T09:48:28.000Z'
     value: string; //'10.24341/tethys.209'
 }
+
+// export enum LoginState {
+//     STATE_DISABLED = 0,
+//     STATE_VALIDATED = 1,
+//     STATE_2FA_AUTHENTICATED = 1,   
+// }