gis-account-page: Add a proper edit button to customize the user avatar
The user avatar can be customized by clicking in the user avatar itself. However, this isn't obvious.
With this change, the user avatar now displays an edit button.
| Before | After |
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Screencast_from_2023-02-18_23-29-10 |
Other changes:
- goa.gresource: Remove blank line at the end
Fixes #174 (closed)
Edited by Automeris naranja