Added support for the Symbol Chat mod.

• The Emoji picker is based on Discord's emoji sorting but only with the emojis that Twemoji Visibility supports.
• You can also find the twemoji:twemoji table in the Unicode Table. Make sure the page is set to 1 and Hide Missing Glyphs is checked.
• Credit to AlphaLeoli for helping with this.

Text shadow has been fixed for action bar, boss bar, and a few other places.

Known issues:

Emoji text shadow is broken in GUIs with certain text fields excluding books. (Anvil, Command Blocks, Resource Pack Menu, Server/World Creation [but they are fine in the Select World and Player Multiplayer menus], Symbol Chat's Unicode Picker (if text shadow isn't turned off), and likely some other places.

• Container GUIs work properly.

Emojis on glowing Signs do not display properly.

These issues may not be fixable. If you find a way please let me know.