Update to Minecraft 1.21

Update to Minecraft 1.21

• Fixed: Custom blocks can't be opened in caves.
• Improved: Dropped-type custom blocks can be created when there are no other items dropped within a 1-block range, instead of 5.
• Simplified: Removed the credit link display.
• Custom Craft Version: 5 (compatible with the same version)

• Fixed: Custom blocks can't be opened in caves.
• Improved: Dropped-type custom blocks can be created when there are no other items dropped within a 1-block range, instead of 5.
• Simplified: Removed the credit link display.
• Custom Craft Version: 5 (compatible with the same version)

Change the mechanism of how the working table crafts.
Change the item base of enderite ingots and GUI items to a clay ball.
Change the required resource pack.