- Added a competition, works this way:
who caught more fish(rarity affects the points), he won
- Added new placeholder %nf_competition_wins%
- Added new command /nfcompetition

- Fix Bugs
1) When selling, there was no check for a full inventory and things that should have been returned to the inventory simply disappeared
2) Fix bug with shiny
3) Fixing minor bugs

- OPTIMIZATIONS
I am surprised that no one wrote about the appalling resource consumption of version 1.0.3, fortunately I noticed it and solved this problem