Elytra Swap

Brings 1.19.4 elytra/armor swapping to earlier versions. Just as you would do in 1.19.4 and beyond, simply "use" the armor or elytra (right click) to swap it with what you already have equipped!

Maintenance mode

Since this is backporting a 1.19.4 feature, this will obviously not receive updates for versions 1.19.4 and on.