Balance and Bugfix Update

Hey again! Small update this time, and it should be the last one for a while. The game is finally in a finished state, and I want to thank everyone who has been playing and sending feedback, it's been super helpful!

• The Star unit has been buffed, now scoring more points when it gets to the opposite side of the screen. This should make it more valuable during unit selection and make it a more compelling choice!
• Button sound effects that were missing were added in.
• Extra all-around testing and polish to the UI.

Thank you again for playing. ♥

- Benjamin Paulsen, Developer of In A Flash