Improvements

• Additional keybind slots for keyboard and mouse.
• Display audio level percentage.
• Added brightness slider.
• Added master volume slider.
• Added mute on focus loss toggle.

Fixes

• Building sleep button restored.
• Hide range button from buildings without attacks.
• Correctly update icons when remapping keyboard.
• Correctly swap between fullscreen/borderless/windowed modes.
• Fix crash from error in settings config.