Basically, everything that sends valid tracking number can be converted into a global or valid `msg.string` of this branch. In the wokflow it is ` package_code` in `query_param` and it should be changed to valid tracking number.
The url for unofficial postur.is API `"http://www.postur.is/Umbraco/Surface/PackageTrackerApi/Handle?number={{{query}}}&lang=EN"` does accept `lang=IS`