online-accounts: Add arrow and settings icons to list row
In GNOME Initial Setup on the online accounts page, the list of rows has a next icon, while in settings there is no next icon.
The added accounts show the settings icon as shown in the layout.
The icons are in the most recent layout: https://gitlab.gnome.org/Teams/Design/settings-mockups/-/blob/master/online-accounts/online-accounts.png
| Before | After |
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The layout changes the warning icon to a "Connection lost" text, I couldn't implement this because of my lack of familiarity with the C language.
| Currently | mockup |
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