Function save_user_config

src/config/user.rs:98–103

(weak: Weak<MainWindow>)

                if resolved != config.text.font() {
                    config.text.set_font(resolved);
                    let _ = write_config(&path, &config);
                }

                config
            }
            Err(_) => {
                let config = UserConfig::default();
                let _ = write_config(&path, &config);
                config