Handle cases where device does not have location service

[pkalita-lbl]

It may be possible for the app to run on a device in certain conditions (for example, a wifi-only iPad not connected to a network) where location services are unavailable. This task is to investigate how such a situation can be detected and how to handle it.

A starting point may be using the checkPermissions function provided by the Capacitor geolocation plugin (https://capacitorjs.com/docs/apis/geolocation#checkpermissions). Although that may only tell you if a user has allowed location access and not whether location access is possible.