Fixes:
- Issues with loading incorrect texture related to saddled entities within experimental screen
- Missing translation key for gamerule
Changes:
- Adjust screen button injection to be API driven allowing for compat of other entities and add support for horses inventory by default
- Adjust strict mode for Unique slot API to allow for changes to who has the slot bound to them in partial mode
- Allow for cosmetic armor to be added to other entities for other mod compat