[Fabric 1.21.1] Fish of Thieves v21.1.0.0

Use new versioning system to match with vanilla game drops
- Starting with 21.1.0.0 following by this pattern
  - 21 = Minecraft major version
  - 1 = Minecraft minor version
  - 0 = Content update version
  - 0 = Patch, bug fixes version
[NeoForge] Update 'JSON Update Checker' URL
Added compatibility with Serene Seasons
Fixed possible adding duplicate boat type to the game, closes #73
Added Xaeros Minimap entity icon support
Wreckers can now catch around Ocean Shipwrecks and Ocean Ruined Portals within 32 blocks