flatpak: Keep updating related apps even if one of them fails
@joaquimrocha
Submitted by Joaquim Rocha Link to original bug (#787121)
Description
When updating apps that are related to a main app, if one of those apps fails to update, then we should just continue with the next app update.
This will allow users to update as much as possible in one attempt which is especially important for users that do not have a permanent or reliable internet connection. Otherwise those users would have to have a reliable connection for the entire duration of all updates and this could very well mean never being able to update an app that has several related apps.