v4.9.0 - Fixes issues with image/data packs & improves file install process

What's Changed

• Update translations by @auer1329 in #284
• Adds locks to the file system to fix issues where write tasks cause read tasks to be called a lot by @neil-morrison44 in #282
• Version bump & fix translation typo by @neil-morrison44 in #286
• Changes the image pack stuff to read the variants from the releases by @neil-morrison44 in #287
• Fix image pack loading by @neil-morrison44 in #288

Full Changelog: v4.8.1...v4.9.0