Email Confirmation and refactor for snackbar

frontend/pweb/lib/pages/status/failure.dart

@@ -8,7 +8,14 @@ import 'package:pweb/generated/i18n/app_localizations.dart';
 class StatusPageFailure extends StatelessWidget {
   final String errorMessage;
   final Object error;
-  const StatusPageFailure({ super.key, required this.errorMessage, required this.error });
+  final Widget? action;
+
+  const StatusPageFailure({
+    super.key,
+    required this.errorMessage,
+    required this.error,
+    this.action,
+  });
 
   @override
   Widget build(BuildContext context) => exceptionToErrorPage(

frontend/pweb/lib/pages/status/page.dart

@@ -16,6 +16,7 @@ class StatusPage<T> extends StatefulWidget {
   final String successMessage;
   final String successDescription;
   final Widget? successAction;
+  final Widget? failureAction;
 
   const StatusPage({
     super.key, 
@@ -25,6 +26,7 @@ class StatusPage<T> extends StatefulWidget {
     required this.successMessage,
     required this.successDescription,
     this.successAction,
+    this.failureAction,
   });
 
   @override
@@ -58,6 +60,7 @@ class _StatusPageState<T> extends State<StatusPage<T>> {
           return StatusPageFailure(
             errorMessage: widget.errorMessage, 
             error: snapshot.error!,
+            action: widget.failureAction,
           );
         }
 
@@ -75,4 +78,3 @@ class _StatusPageState<T> extends State<StatusPage<T>> {
     ),
   );
 }
-