Small update to add a few more QOL features

• Theres a settings menu so now you can change the volume of the whole game or things like music, sfx, and ambience
• There are 2 new music tracks that can play when fishing curtesy of RavenRain
• I made an icon for the game on release but apparently forgot to actually display so yipee its not the default unity logo anymore

I'm very tired, so maybe I'm forgetting something but oh well :\

Good night :3