Improve signup form
I just registered a new user and there are 2 things which could be improved:
- HTML5 validation would reduce load and improve UX
- I got the error "Username: Username is blocked." and this is not understable. what does this mean?
- Add HTML Valdidation for femanager template
- Add a detailed message for "Username is blocked." ==> "Username is deactivated. Please choose another one. If you want to reactive this username, please use the feedback form below.".