Add NPS Scores to Dashboards

[NatHiggins]

Right now, in the new Custom Surveys, you can add the reports in the Analyse tabs to a Dashboard if it is a Custom Question but you can't for NPS scores.

This feels like a major oversight to me because including NPS in a Dashboard, that can then be sent to Company Leaders or seen next to other relevant stats, seems like it should be basic included functionality.

Simply allowing for the pre-built NPS reports that already exist in the Analyse tab of the Survey to be added to a Dashboard would be a massive win.

Also, I think the same is true for CSAT & CE scores, so if that's the case those should also be able to be added to Dashboards.