- Fix error with sellwand uses.

- Fix error on 1.21.1

• Added 1.21.1 support

• Added hopper support

• Added advanced chest support

• Added a confirmation for sellwand, you need to add it to config:

# Confirmation for sale with double click

Confirmation:

enabled: false

Particle color. RGB format (red, green, blue)

color: "0,255,0"

How many seconds player have to confirm sell

time: 2

- Added 1.21 support

- Fix error with Purpur