migrates internal data structures to use prisma with sqlite and prisma-client-rust. allows for cool db migrations and better stability/performance. also refactors all blocking and async operations, and ensures the launcher has smooth performance even during intensive operations like asset downloading

also changes launcher directory to be more in line with what other apps use, and fixes some bugs with db and freezing of the launcher due to weird RwLock behaviors.

very very very wip... here are some todo items that i will forget to update:

• remove offline mode stuff
• restructure store to work with the new prisma types
• add ability to change the default launcher directory
• restructure file system watcher (maybe remove, not sure)
• fix cluster importing
• fix cluster exporting
• tauri meta changes
• remove debugging macros