Updated to 1.21.4
Made commands more user-friendly.
/nsse swap <blockEntity>(swaps in inventory)/nsse swap <blockEntity> <pos>(swap at a specific position)
Added an error when trying to swap non block entity blocks in world.
Fixed inventory swap showing un-translated block name in chat.
Full Changelog: https://github.com/TriibuNupsik/NotSoShadowExtras/commits/1.21.4