Update 1.7.7a

Repentance v1.7.7a

Localization
- Fixed some achievements being rendered incorrectly when the language is set to Russian

Modding changes
- Added a placeholder collection sprite for modded items that do not provide one
- Fixed Lemegeton wisps not being rendered properly for modded items
- Fixed costumeSuffix attribute not working as intended when assigned to Isaac
- "goto" command now accepts "default" as a room type when trying to warp to a special room