Added:
1- A toggle button added to turn firework on/off.
2- Title feature added: a customizable title with hex color support displays on player's screen upon joining. Option to disable it available.
3- Sub-title option added, configurable and can be turned on/off.
4- Title fade-in, display time, and fade-out can be adjusted via config.
5- Sound option added: a customizable Minecraft sound plays upon player join. Option to disable it available.
6- PlaceholderAPI is now a soft-depend.

Fixes:
1- Bugs fixed.
2- General plugin optimization.