Onboarding improvements
Mainly tidying up, but there are also functional changes.
- removed dead code of CreateProfile screen (we have and will have only the Form version)
- Url raised NodeAddressError - it just shouldn't, since Url is for general purpose
- removed notifications about validation during onboarding when it's obvious what happened
- separate the validation and apply in FormScreen
- smaller changes, see via commits
Edited by Mateusz Żebrak