Take over Automatic TimeZone setting

[danirabbit]

Problem

Auto time zone setting comes from GSD currently (I think) and it sends ugly notifications with broken buttons

Proposal

Handle it ourselves so we can send nice notifications that:

• Are under the system settings header
• Launch Date & Time settings
• Have a notification ID so they replace each other

Prior Art (Optional)

No response

[ryonakano]

Leaving a note that this should be the class sending this ugly notification:

https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/blob/46.0/plugins/datetime/gsd-datetime-manager.c