fix(windows build)

src-tauri/src/downloads/download_logic.rs

@@ -10,6 +10,7 @@ use tauri::utils::acl::Permission;
 
 use std::fs::{set_permissions, Permissions};
 use std::io::Read;
+#[cfg(unix)]
 use std::os::unix::fs::PermissionsExt;
 use std::thread::sleep;
 use std::time::Duration;