Version 0.9.3 released

Version 0.9.3

Changelog:

- Changed all static backgrounds to endless moving backgrounds
- Now give bonus points depending on percentage of remaining energy (1000*PercentEnergyRemaining)
- Added credits scene (also added to game description on Itch). Most of these attributions were not required, but I am very thankful for the people who made the assets in this game.
- Improved Pause Menu behavior (player avatar doesn't move towards the pause button after being used)
- Added a fading Level Message at the start of each level
- Collapsed the black portals after defeating all the planets on that level