EasyRapport | Login button grayed out if no password entered

Task #12625

When using SwissSalary EasyRapport via desktop, the error message 'Login failed' was generated if the login was activated without entering a password.

The desktop view has been adapted to the mobile view, so that no login call occurs as long as both fields, user name and password, are empty.

As with mobile, the background of the field is adjusted when the login button is clicked if the field is empty. The check takes place on both fields.