Bug fixes and performance improvements

Fixed mobiles with iOS 14 not able to run Fireworks Studios

Bug Fixes

- more fireworks added
- 2 new scenes
- bug fixes

- new fireworks
- user can select duration of fountain

- 8 new fireworks
- pinch zoom in play mode
- firework names and shots added to buttons
- scenes moved out to separate section
- added IAP for ad-free
- various bug fixes

A bunch more fireworks
Performance optimisation