More tweaks in Entity Speed for happy ghast

[E0x72-24]

Type of change

• [ ] Bug fix
• [x] New feature

Description

Separate happy ghast's vertical speed setting. Bypass onlyOnGround rule for happy ghast.

Related issues

https://github.com/MeteorDevelopment/meteor-client/issues/5662

How Has This Been Tested?

Checklist:

• [x] My code follows the style guidelines of this project.
• [x] I have added comments to my code in more complex areas.
• [x] I have tested the code in both development and production environments.

[Pepit234]

Muy bien