Balance Update Notes for v20230505

Based on the metrics & what we've seen, the previous balance update brought us pretty close to where we want the game's overall balance to be. This patch contains some additional, smaller tweaks:

- lowered the Bouncy Ball mod's bounce projectile damage
- slightly reduced Blazemaker grenade damage
- front-shielded laser enemies now restore their barrier after being stunned
- small adjustments to the healing amount & cost in repair bays & shops