loadSettings method
Loads the settings.
This function loads the settings from the shared preferences. It retrieves the app origin from the shared preferences and assigns it to the appOrigin variable.
Returns a Future that completes when the settings are loaded.
Implementation
Future<void> loadSettings() async {
// Get the shared preferences instance.
SharedPreferences prefs = await SharedPreferences.getInstance();
// Get the app origin from the shared preferences.
// If the app origin is not found, use the default value.
appOrigin = prefs.getString('app_origin') ??
'wss://caesar-transfer-iu.shuttleapp.rs';
}