Make sure to handle map/run function failure in MM GUI

[wvangeit]

Related to this ticket:
#1903

So as far as I understand from @alexpargon at the moment the MM UQ service doesn't inform the user when a call to the map of the function API fails.
Imo this is necessary, otherwise the user might end up in the next screen search for the relevant function job collection which doesn't exist, and will never exist if the endpoint fails. (as seemed to have happened in the last few days)
So it would be good to explicitly say to the user that the running of the sampling failed to avoid confusion.

The map endpoint also returns a job collection id. Imo it would also make sense to use this ID in the GUI to mark on the next screen the job collection that was generated by the sampling task. (For now it's solved by sorting on creation date, but this become more problematic once users get access to other people's job collections and my get confused by collections generated at the same time).

[JavierGOrdonnez]

This has already been addressed and will be closed when the PR goes in.