Confirmed PHP 8.5 Compatibility + Cleanups

What's Changed

• [TASK] Remove XLIFF linter by @mabolek in #137
• [CLEANUP] Remove unused localization entries and files by @mabolek in #138
• [TASK] Add PHP 8.5 to CI tests by @mabolek in #139
• [RELEASE] Version 3.0.2 by @mabolek in #140

Full Changelog: 3.0.1...3.0.2