Email Confirmation and refactor for snackbar

frontend/pweb/lib/pages/signup/confirmation/card/resend_button.dart

@@ -0,0 +1,36 @@
+part of 'card.dart';
+
+
+class _SignupConfirmationResendButton extends StatelessWidget {
+  final bool canResend;
+  final bool isResending;
+  final String resendLabel;
+  final VoidCallback onResend;
+
+  const _SignupConfirmationResendButton({
+    required this.canResend,
+    required this.isResending,
+    required this.resendLabel,
+    required this.onResend,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+
+    return ElevatedButton.icon(
+      onPressed: canResend ? onResend : null,
+      icon: isResending
+          ? SizedBox(
+              width: 16,
+              height: 16,
+              child: CircularProgressIndicator(
+                strokeWidth: 2,
+                color: theme.colorScheme.onPrimary,
+              ),
+            )
+          : const Icon(Icons.mark_email_read_outlined),
+      label: Text(resendLabel),
+    );
+  }
+}