Immersive Vehicles Trin Part Pack

## What's Changed ### New Features * Introduced chassis decor (for Trin Trumon crafting) * Introduced Gray and Blue seat varients * Updated recipes to use upholstery kit instead of dye * Updated seats for better NPC and luggage support * Updated Trin Part Pack to have both 1.20.1 and 1.21.1 neoforge minecraft support * Removal of double paint buckets in favor of simple buckets in recipes ### Bug Fixed * Fixed truck beds to follow current convention ## New Contributors * @boot2big made their first contribution! Thanks! **Full Changelog**: https://github.com/TheOddlySeagull/Trin-Part-Pack/commits/2.28.0