Username length limitation

[tamas6]

          @tamas6 move this issue to fdp-storage then please.

Originally posted by @crtahlin in fairDataSociety/fdp-create-account#243 (comment)

[tamas6]

I was unable to create ‘accountSep’
Due to “Invalid username” error

@.staging.
🤷🏻‍♂️

[IgorShadurin]

The error comes from fdp-contracts

fdp-contracts/js-library/src/utils/domains.ts

Line 16 in ab1708a

assert(isUsername(username), 'Username is not valid.')

and then handled in fdp-create-account
https://github.com/fairDataSociety/fdp-create-account/blob/ac19102228038d64afc72e1881210e93695c7e62/src/pages/register/username-password.tsx#L98

[tamas6]

First goal is to inform user the password is invalid due to not knowing the parameters of a correct password.
So let's show it them under the field. "Invalid Password" in red is now a bit a scary