Beta Patch 2.1

This is a small patch mainly for crash fixes and for some artist workflow issues, but here are the player facing changes:

Fix shop crash Fix sealed fate crash

Added some new tilesets

Cleaned up tooltips formatting

Made the naming and descriptions of various complex spell upgrades more clear.

Seraphim heal aura is now an upgrade, adjusted from 4 hp per turn to 5, and not furtherly upgradable.

Spells can now be rearranged in the char sheet by holding shift and pressing up or down

Spell Balance: Archon range 7-> 8 Death Bolt damage upgrade cost 4->3 Death Bolt minion damage upgrade cost 5->3