fix(*): validate errors on form changes

[MichaelVerdon]

closes #1310

• This change will display errors and remove them based on keyboard strokes using onChanged instead onBlur to make the UI more responsive. So if you are a few characters short on a password, the error will vanish as soon as you meet the requirements, same with email.
• This change is applied to all packages
• Removed onBlur references as it is not required if fields are already validated by onChange()
• Errors say 8 characters on password is enforced but internally we use 6 so change message to 6.