fix for resend, cooldown and a few small fixes

frontend/pweb/lib/widgets/resend_link.dart

@@ -0,0 +1,48 @@
+import 'package:flutter/material.dart';
+
+
+class ResendLink extends StatelessWidget {
+  final String label;
+  final VoidCallback onPressed;
+  final bool isDisabled;
+  final bool isLoading;
+
+  const ResendLink({
+    super.key,
+    required this.label,
+    required this.onPressed,
+    this.isDisabled = false,
+    this.isLoading = false,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final color = theme.colorScheme.primary;
+    final isButtonDisabled = isDisabled || isLoading;
+
+    return TextButton(
+      onPressed: isButtonDisabled ? null : onPressed,
+      style: TextButton.styleFrom(
+        padding: EdgeInsets.zero,
+        minimumSize: const Size(0, 0),
+        tapTargetSize: MaterialTapTargetSize.shrinkWrap,
+        alignment: Alignment.centerLeft,
+        foregroundColor: color,
+        textStyle: theme.textTheme.bodyMedium?.copyWith(
+          decoration: TextDecoration.underline,
+        ),
+      ),
+      child: isLoading
+          ? SizedBox(
+              width: 16,
+              height: 16,
+              child: CircularProgressIndicator(
+                strokeWidth: 2,
+                color: color,
+              ),
+            )
+          : Text(label),
+    );
+  }
+}