Authentication sequence freezing upon opening the browser

[gitRaiku]

Describe the bug
When first logging in with psst, the code path runs through

let (auth_url, pkce_verifier) = oauth::generate_auth_url(8888);
if open::that(&auth_url).is_err() {
    data.error_alert("Failed to open browser");
    return;
}

in psst-gui/src/ui/preferences.rs.

Running open::that() opens firefox, halting execution until firefox is closed, blocking the creation of the thread, blocking with it the creation of the oauth socket.

To Reproduce
Run psst-gui for the first time.

Expected behavior
Have the socket be created while firefox is running.

Environment

• OS: Arch linux 6.13.2
• Firefox: 135.0

[gitRaiku]

Pull request #589 tries to alleviate this issue.

[jacksongoode]

Closed in latest commit