Swapped reload/zoom actions on Eviscerator, the spread toggle should be a tertiary fire thing. The reload button really should only ever be used for reload actions, gotta keep things consistent.
Additional fixups and changes to the Demolitionist Menu:
- Fixed incorrectly scaled scrollbar click/drag on the lore library.
- Hide mp-only tabs during singleplayer.
- Don't list the "SWWMGesture" weapon in the inventory.
- If the current active tab is the library, the secondary tab will also be remembered after closing and reopening.
