Minor gameplay polish tasks (#319)

* Minor gameplay polish tasks

- crystals are too shiny and weird-looking when they're broken
- if you're standing still and trying to melee an enemy, you should turn to face the enemy so you can actually hit them
- when using the archer's AoE ability, the reticule should wait for a real mouse-click, not just a mouse-release
- make the 1 key fire a basic-attack (like clicking the mouse), and make 2, 3, 4, use the first, second, and third special, respectively.
- add numbering to the ability bar and emote bar so players know what keys do what thing

* updated comment for why we're tracking mouse-down mouse-up cycle in AoeActionInput

Co-authored-by: David Woodruff <[email protected]>

Author: eheimburg

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