fix for resend, cooldown and a few small fixes

frontend/pweb/lib/pages/verification/controller.dart

@@ -26,6 +26,7 @@ class AccountVerificationController extends ChangeNotifier {
   Exception? get error => _verificationProvider.error;
   bool get canResend => _verificationProvider.canResendVerification;
   bool get isResending => _resendStatus == FlowStatus.resending;
+  bool get isAlreadyVerified => _verificationProvider.isTokenAlreadyUsed;
 
   void startVerification(String token) {
     final trimmed = token.trim();