Touchscreen support

[Iamnotagenius]

A really niche feature but why not.

To get this option from a client: MinecraftClient.getInstance().options.getTouchscreen().getValue().

When touchscreen mode is off:

• Choices would show up when a player is hovered over an empty slot

When on:

• Choices would show up after a click (current behaviour)
• Click on an echantment would reveal a tooltip (in some certain, predetermined spot) as well as buttons to upgrade/reroll it