-fixed a typo in fabricableItem requirement & added checking for said typos

- fixed being able to set battery recharge sped over the limits
- fixed vents being added to OxygenGenerator.ventlist multiple times
- fixed item.Submarine not being set if pulling an item from a fabricator
- some tutorial fixes
- fixed TraitorMode endmessage not being shown if the sub isn't at the end and neither character is dead
- SalvageQuest fails if the item has been destroyed
-

Subsurface/Source/Events/Quests/SalvageQuest.cs

@@ -68,8 +68,8 @@ namespace Barotrauma
 
         public override void End()
         {
+            if (item.CurrentHull == null || item.Removed) return;
             item.Remove();
-            if (item.CurrentHull == null) return;
 
             GiveReward();