Add envelope settings step to wizard

Introduced a new step (step 2) in the `CreateEnvelopeWizardPopup` for configuring envelope settings, including security, reminders, and expiration options.

- Added fields for certification type, final email options, 2FA, access codes, and reminder settings.
- Updated step titles, descriptions, and total steps from 4 to 5.
- Implemented validation logic for the new settings step.
- Added methods to handle changes in settings fields and apply defaults.
- Updated `CreateEnvelopeWizardResult` and `CreateEnvelopeBootstrapPayload` to include new fields.
- Modified `SenderEditorPage` and `SenderPage` to handle new settings.
- Styled the new step with updated CSS for grids, groups, and toggles.
- Refactored state reset logic to initialize new fields.

EnvelopeGenerator.Server/EnvelopeGenerator.Server.Client/Pages/SenderPage.razor

@@ -730,6 +730,16 @@
             Message: result.Message,
             EnvelopeTypeId: result.EnvelopeTypeId,
             Language: result.Language,
+            UseAccessCode: result.UseAccessCode,
+            TFAEnabled: result.TFAEnabled,
+            CertificationType: result.CertificationType,
+            FinalEmailToCreator: result.FinalEmailToCreator,
+            FinalEmailToReceivers: result.FinalEmailToReceivers,
+            SendReminderEmails: result.SendReminderEmails,
+            FirstReminderDays: result.FirstReminderDays,
+            ReminderIntervalDays: result.ReminderIntervalDays,
+            ExpiresWhenDays: result.ExpiresWhenDays,
+            ExpiresWarningWhenDays: result.ExpiresWarningWhenDays,
             Receivers: result.Receivers
                 .Select(x => new CreateEnvelopeBootstrapReceiver(x.FullName, x.EmailAddress))
                 .ToList(),