Port to 1.20.1

[reetamb]

Mining Master has been ported to 1.20.1, with the following necessary changes:

• Gradle files and mods.toml updated
• New method of registering creative mode tabs
• GUI methods take GuiGraphics
• LivingEntity and ItemStack method changes

In addition, minor changes have been made to the Gem Forge subtitles.

[reetamb]

• The Lava Bucket now renders on the confirm button of the Gem Forge
• Its texture is now part of the GUI texture of the Gem Forge, allowing resource pack creators to modify it