Small hotfix of fuel generator and some additional changes.

CHANGE LOG
Improvements
- Now all corridors works as cargo storage, each type of corridor have different capacity, but it is less effective than normal cargo container
- Audio effect of mining laser is changed, added activation effect
- Outdated option "Enemies amount" removed from world creation window
- Language files updated
Fixes
- Fixed impact point of visual effects of lasers
- Fixed "invisible" model of fuel generator
- Option "Stations amount" in world creation window now works again
