redesigned payment page + a lot of fixes

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

@@ -3,8 +3,8 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 
 import 'package:pshared/provider/account.dart';
-import 'package:pweb/models/resend/action_result.dart';
-import 'package:pweb/models/resend/avaliability.dart';
+import 'package:pweb/models/auth/resend/action_result.dart';
+import 'package:pweb/models/auth/resend/avaliability.dart';
 
 import 'package:pweb/utils/snackbar.dart';
 import 'package:pweb/utils/error/snackbar.dart';

frontend/pweb/lib/pages/signup/confirmation/page.dart

@@ -7,7 +7,7 @@ import 'package:pshared/provider/account.dart';
 import 'package:pweb/app/router/pages.dart';
 import 'package:pweb/pages/login/app_bar.dart';
 import 'package:pweb/pages/signup/confirmation/card/card.dart';
-import 'package:pweb/controllers/signup/confirmation.dart';
+import 'package:pweb/providers/signup_confirmation.dart';
 import 'package:pweb/pages/with_footer.dart';
 
 
@@ -26,12 +26,12 @@ class SignUpConfirmationPage extends StatefulWidget {
 }
 
 class _SignUpConfirmationPageState extends State<SignUpConfirmationPage> {
-  late final SignupConfirmationController _controller;
+  late final SignupConfirmationProvider _provider;
 
   @override
   void initState() {
     super.initState();
-    _controller = SignupConfirmationController(
+    _provider = SignupConfirmationProvider(
       accountProvider: context.read<AccountProvider>(),
     )..addListener(_handleAuthorizationStatus);
     WidgetsBinding.instance.addPostFrameCallback((_) => _startPolling());
@@ -39,8 +39,8 @@ class _SignUpConfirmationPageState extends State<SignUpConfirmationPage> {
 
   @override
   void dispose() {
-    _controller.removeListener(_handleAuthorizationStatus);
-    _controller.dispose();
+    _provider.removeListener(_handleAuthorizationStatus);
+    _provider.dispose();
     super.dispose();
   }
 
@@ -51,7 +51,7 @@ class _SignUpConfirmationPageState extends State<SignUpConfirmationPage> {
     if (email == null || email.isEmpty || password == null || password.isEmpty) {
       return;
     }
-    _controller.startPolling(
+    _provider.startPolling(
       email: email,
       password: password,
       locale: Localizations.localeOf(context).toLanguageTag(),
@@ -59,7 +59,7 @@ class _SignUpConfirmationPageState extends State<SignUpConfirmationPage> {
   }
 
   void _handleAuthorizationStatus() {
-    if (!_controller.isAuthorized || !mounted) return;
+    if (!_provider.isAuthorized || !mounted) return;
     navigateAndReplace(context, Pages.login);
   }
 

frontend/pweb/lib/pages/signup/form/controllers.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 
-import 'package:pweb/controllers/email.dart';
+import 'package:pweb/controllers/auth/email.dart';
 
 
 class SignUpFormControllers {