Added

Frozen heart variant
Withered heart variant
Poisoned heart variant

To dynamic hearts!

- Support for 1.17 - 1.19
- /reloadhealthdisplay to reload the config. Use this after making a change.

Added the option to toggle Dynamic hearts.
Dynamic hearts means that the color changes based on the amount of health the player has!

Colors - (Cannot be changed for now)

Absorption: Gold
Health is above 70 percent: Lime
Health is between 70 and 44 percent: Yellow
Health is between 44 and 25 percent: Red
Health is below 24 percent: Dark red

- Cleaned some of the code.
- Added config

Now, if you want to change the font of the heart, you can!