Draft: weather-settings: Fix setting manual location

Balló Györgyrequested to merge
City-busz/gnome-calendar:fix-location into main

This feature was lost during the GTK4 port. The GcalLocationEntry is a copy of GisLocationEntry from the gnome-initial-setup project.

Also ensure that the GeoClue client stops properly when it's not used.

Closes: #536

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