Typo fixes in descriptions

- Fixed Fountain of Blood (unfortunately had to gate level 2 summon spells behind level 2 teleportation spells for esoteric mod reasons).

- Added upgraded Divine Egg art (fancy new shading by Vorochi)
- Bystander no longer gets a Pretender if using both mods together

- Balance changes for Haunted Raven
- Skeletal garden regeneration reduced
- Ritual spell rework for all pretenders that used vanilla rituals
- Fountain of Blood focused more tightly on summoning, away from new soul contract mechanics
- Some small bug fixes
- River Wyrm summoning reworked for QoL, balance

New steam thumbnail

Reduced modprio to 7; this allows add-on mods to slot in at modprio 8, which allows God Inspector at modprio 9 to incorporate them (if I manually update it or somebody forks God Inspector).

-Added 7 new pretenders
-Cleaned up the notation on immobiles with access to teleportation
-Various small fixes and tweaks

Slight modifications for compatability with God Inspector tool

Reworded some descriptions for cadence and clairty.
Minor graphical tweak.

- Inanimate pretenders now have inanimate tag
- Placeholder sprites for ringbearer and weapon chest replaced
- Reduced turn delay on path of the falling star
- Hoplite autarch now gets minions
- Bog Wight gets level 1 spells to start