Allows running tests without constantly running `composer install` on each extension.
* test: regex validation for nickname on registration * fix: nickname regex validation not working * test: regex validation works with valid inputs
Allow users to set a nickname while registering, controlled by settings. Also, add a setting to hide the username input entirely and randomly generate the username. Co-authored-by: Sami Mazouz <sychocouldy@gmail.com>
