gnome-initial-setup: change to network page description

["Will Thompson" <wjt gnome org>]

Hi,

We are in the String Change Announcement Period!

The wi-fi setup page of Initial Setup previously had this caption:

> Connecting to the Internet will enable you to set the time, add your details, and enable you to access your 
> email, calendar, and contacts. It is also necessary for enterprise login accounts.

I have just merged a change to replace that string with:

> Connecting to the internet helps you get new apps, information, and other upgrades. It also helps set the 
> time and your location automatically.

https://gitlab.gnome.org/GNOME/gnome-initial-setup/-/merge_requests/95

– Will