Bug fixes and stability improvements
- Added firefly spawning mechanic when a fly is destroyed
- Added sound effect for destroying a fly
- Fixed bug with the music toggle button
- Fixed bug with button placement on iPhone with notch and island
- Fixed bug where fireflies disappeared
- Fixed bug with delayed shot after pressing the button
- Fixed bug with symmetrical direction of fireflies upon spawn
- Fixed bug with shading of the lower part of the screen at the end of combat
- Performance and stability improvements