Add detection of account creation, remove overlay and clear text when response recieved by Signup. Remove Jinja references and form in __init__.py

- Fix error output
- Remove page return
- Remove Jinja references and form in __init__.py
- Get basic form data passed
- Clear text when response recieved
- Create directory and pass username variable
- Create refresh page function. Implement error handeling
- Add detection of account creation
- Remove overlay when creation succeeded