New minibosses and bugfixing

Hi all, this is a small patch aimed at fixing some bugs mainly. There are also two new minibosses that can be found in the early areas to try out.

Additions:
2 new minibosses!
Braniac now has custom items (that can also be found at the Fortune teller)

Balance:
Orion can no longer find Toxic Bullet, since it was so terrible on him.

Fixes:

Multiplayer- should now be back up and running!
Fortune Teller- fixed a bug in this room where Braniac and rerolling would softlock the game
Fixed a bug where chests could softlock or offer empty slots later in the run
Keys should now properly discount in the HP shop, reducing the cost by 1 HP
Laika's shop dialogue now properly offers all 3 options (reroll, key, quit)
Rerolling in the shop now uses a ticket if it is in your inventory
Shop tickets now allow items to spawn of any tier (was causing a bug where the shop level was too high to offer items of the ticket type)
Fixed bug where the Earth's moon would glow and get giant
Casual mode- should now retain all newer items added in the last patch between deaths.
Casual mode- keys and rerolls now are retained between deaths.
Some enemies that weren't triggering on-hit effects, like the Armoured runts, will now do so properly.
In ultra-widescreen, fixed the background not stretching the full length of the screen