* Rework InventoryManager and UI
* Tie Quickslots into InventoryManager
* Moved Quickslots UI to bottom of screen
* Repositioned held block visual
* Updated placing and throwing blocks to utilize inventory and quickslots
Co-Authored-By: Ryan Reed <ryanreed@noreply.gitea.ryanreed.net>
Co-Committed-By: Ryan Reed <ryanreed@noreply.gitea.ryanreed.net>