Continuity: Properly handles parsing failures of the initial state url parameter

[sabieber]

Previously this crashed hard. We now recover from the failure by ignoring the invalid parameter value. We additionally call a error handler callback function when defined so custom error handling logic can be executed.

Example for Error Handler:

initialStateParseErrorHandler: function () {
    oxomi.withConfig(function () {
        oxomi.showMessageInDialog(
            oxomi.translate('history.deeplinkParsingFailed.title'),
            oxomi.translate('history.deeplinkParsingFailed.message')
        );
    });
}

Fixes: OX-9093