Full Name validation needs to be improved

[hinakhadim]

When registering as a user in authn MFE Register tab, there is a full Name field.

• That field allows user to enter single character. I believe that the validation should update and must allow to enter at least 3 characters.
• The full name field is accepting the special characters as well. Full name doesn't contain any special characters so validation should include only alphabets

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[jciasenza]

I think it's fine that you accept special characters because in different languages ​​there are characters that are used and are not recognized as alphabetic and neither is the quantity.
But if it needs to be reviewed I could correct the Issue. @arbrandes