bug fixed and changes to v2.6!

in this update, some icons are changed and moved. I also removed all themes except the light and dark mode ones because when the theme was changeable with only scenes, it was a little too much for me. but I now know how I can make the themes change without moving to the next scene or game object. I also added an intro picture when starting the game! and the bug fixes made was the GC script not working in schools 2 & 3, so I put the GC script in all the game objects without the GC script and the pause menu so yall can visit schools 2 & 3 without having to get stuck in those schoolhouses!