Abundant Vegetation

It's a beta version! I can't guarantee that updating the world to the beta or exiting the beta will be 100% safe. Make a backup!

Contents:

• Further optimize the stone cliff feature by adding more variant blocks to enrich the texture variations of the stone cliffs.
• Modify some of the biomes trees, adjust the generation density, and increase the texture details of the surface cover blocks.

Bug Fix:

• Fix the issue where stones were incorrectly generated under the tree.