bug: It is possible to change the name the username of an account and it makes impossible to login

[Cruellest]

Describe the bug

If you create an user in homarr and then edit its username using any uppercase character in the edit panel, it makes impossible to access that user accont again through the login screen or another device.

Steps to reproduce

To reproduce this bug it is pretty simple, just create an new user account and then update the username adding any uppercase character, after that it will be impossible to login in that user until you remove that character.

Impact

If the user dont have any device logged as an credential-administrator, it can cause an brick in that homarr installation, making it impossible for the user to fix.

Additional information

probably a good fix would be making impossible for the user to add an uppercase character in the edit user info page.

Version

1.4.0

Installation method

Docker Compose

Browser

Chrome