Use real metric names and descriptions

[escottalexander]

We are at a point where we could import the actual metric names and descriptions and just change the dummy data to use the new metric names. By doing this now, we won't need to do it when we get the actual data from OSO.

[escottalexander]

Here is where the metric names are located: https://models.opensource.observer/#!/model/model.opensource_observer.rf4_impact_metrics_by_project#description

[escottalexander]

Handled in #99