- Deleted SignupForm component and its associated steps (AccountStep, AddressStep, PasswordStep, ReviewStep).
- Removed references to SignupForm in index files and views.
- Updated MigrateAccountView to redirect to the new get-started flow.
- Adjusted PublicInternetConfigureView to use InlineGetStartedSection instead of InlineAuthSection.
- Cleaned up unused hooks and store methods related to WHMCS linking.