Firework Cooldown

The Update that actually made the mod work

• Fixed Cooldown not triggering when fireworks were in offhand and the mainhand was empty
• Disabled all Items that broke the firework cooldown while flying with an Elytra
• Fixed the mod sometimes not checking if the player was flying
• Improved description for the gamerule

Known Issues

In some very rare cases (and only if the world lags during them) the cooldown logic might break. I will try to improve this in the feature, but it shouldn't happen often in a regular playthrough. If it does anyway, reloading the world will fix it.

Huge thanks to everyone that reported these bugs to me as I probably wouldn't have noticed them without you!