Lush Cave decorator is different each time ignoring the world seed

Related to MC-219200

The lush cave decorator such as the clay pools, moss patches with azaleas, and dripleaves are different, each time you create a new world with the same seed. Basically, the lush caves decorator isn't seed-related resulting in you getting a different decorator every time.

Step to Reproduce
1. Create a new world with the seed 392423372
2. Do /tp -944 35 651
3. Take a screenshot.
4. Save and quit, and repeat the process from the start.
5. Compare both screenshots.

Observed Result
The lush cave decorators are different when creating two worlds with the same seed.

Expected Result
The lush cave decorator should be the same between two worlds with the same seed.

Other seed and coords to compare:

Seed: 392423372
Coords: -1235 -8 836