geoclue: Add a default provider

[TraceyC77]

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Name

geoclue

Version

2.7.1 r23

Summary of the problem

GeoClue moved from using MLS as a default provider to having no provider. This causes Night Light on KDE Plasma to not know the user's actual location and turn on / off at the wrong times unless you're in GMT.

Solus needs to pick a location provider and configure GeoClue to use it.
From this issue in the KDE tracker

This means that the issue is a bad configuration of GeoClue's settings, which is now mostly up to the distribution: arch opted to use the Google services with a custom API key, while others such as NixOs are leaning into beaconDB (https://beacondb.net/).

More information

For background, see this issue in the KDE tracker