Patch 0.14.0b - hotfix

I'm doing another quick hotfix due to a bug not rewarding new players the P51c

Bug Fixes
- Fullscreen settings resetting every mission
- AI difficulty wouldn’t assign itself on some AI’s causing infinite errors
- Infinite PPS2 shader errors on Ventura (MacOS)
- P51c wasn’t unlocking on tutorial
- B17 wouldn’t be bought when the the B17 survival mission was completed

Known Bugs
- Me262 HG doesn't show cost after being unlocked (Its 87400 to purchase)
- B17 payloads position incorrectly when mission restarted
- Changing measurements from Knots to KmH or MpH doesn't effect in-game hud
- P51d & Me262 HG ailerons are inverted