feat: implement osu! installation validation

src-tauri/Cargo.toml

@@ -27,6 +27,7 @@ tauri-plugin-sql = "2.3.0"
 tauri-plugin-dialog = "2.3.0"
 tauri-plugin-fs = "2.4.0"
 hardware-id = "0.3.0"
+winreg = "0.55.0"
 
 [target.'cfg(not(any(target_os = "android", target_os = "ios")))'.dependencies]
 tauri-plugin-single-instance = "2.3.0"