Customizable Player Models

Added new keybinds: toggle editor visibility, toggle hidden by default
Added mirror part pose option
Animation copy and paste default keybinds changed
Added recover previous project on crash, saved into the autosaves folder
Swimming (pre 1.13) renamed to In water and plays when in water and not 1.13+ swimming

Fixed UUID lock showing as Safety settings error
Fixed Reset Pose Activating a pose/gesture (Closes #371)
Fixed select animation popup not showing anything when searching
Fixed paste frame not pasting correctly in some cases
Fixed copy transform crashing the exporter
Fixed vivecraft crash (Closes #380)
Fixed scaling not working after death on fabric