User should get an generic message when he clicks on login button

[Ekta-testbytes]

Steps-

1. open the Application
2. Click on Login button

Expected result – User should get an Error message saying “Username and password is required”
Actual result – user gets an error message “username is required’’

[Wim Selles]

Thanks for the issue, can you please file it here. This repo is for the mobile app