Backlog #4: Improve delete functionality #4
Description
TODO:
- delete functionality limited to undo/clear, not very intuitive
- change such that clicking on tile deletes the tile from the hand; have other tiles shift left
- (after backlog 1) if one deletes a tile from chi/pon/kan, delete the whole meld
- (after backlog 1) if dora is turned on, delete only dora tiles instead