Show better 'cannot update' error message if the disk is full

[pedzed]

When the disk is full, Signal cannot be updated and the following is shown:

It would be more user friendly if it detected that the disk is full and you were told that the update cannot be performed until the user makes more space available.

Operating system: macOS

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[pedzed]

I'm not sure if this has been solved yet. If not, it should stay open.