Added off-hand support
tested on 1.20.6, 1.21, 1.21.1
Fixed mod not working for versions below 1.20.5
Bumped to 1.21
Fixed the mod being disabled completely upon using another off-hand item while holding rod
added 2 new options: RodCatchDelay, RodReleaseDelay
Tested on 1.20.6
Tested on 1.19.2, 1.20.2, 1.20.4