[OzzModz] Custom User Style 1.0.1 Patch Level 2

1.0.1 Patch Level 2:
- Fix: " [E_DEPRECATED] DateTime::setTimestamp(): Passing null to parameter #1 ($timestamp) of type int is deprecated
" errors on PHP 8.1+

Don't render default "color" CSS properties with empty values

Added option to override other user banners
Added option to sync user upgrade duration with custom styles end date
Added option to select black-listed groups (custom styles will not shown if user will become member from that groups)