Allow usernames shorter than 5 characters

[schultzter]

Since I'm self-hosting for my family I like to use our firstnames as our usernames, but mine is only 4 characters long so Assets won't let me. It's what I've used everywhere else so I would like it to be same here too.

Thanks

[venil7]

Hi @schultzter, thanks for your feedback.
i'll add this in next release

[schultzter]

Works now, thanks!