Balance patch

Balance changes:

- All weapons now costs 1 more, since maximum offense tactic proved to be the best and overwhelming above all others.

- Missile Defense costs 1 more, since it was too effective.

Minor changes:

- Added hotkeys in ship builder.

- Fixed issue when you was unable to end turn in a second battle in a row without refreshing the page.

- Modules dragged by mouse should be above all panels now.

- Fixed visual bug with enemy uncovered laser's beam shown incorrectly.