Label the actual Hard/No/Yes/Easy answers in the SRS review summary

[fabd]

Update Requires first "Unify the Review Summary between SRS & free reviews" #94

The SRS review summary table should have some nice colored labels that indicate at-a-glance the actual answers used: Hard, No, Yes, Easy. Semi complex.

Currently only bare bones flashcard stats are shown. This doesn't help with "Hard" answers, which are counted as failed reviews, but are not otherwise distinguished in the Review Summary.

Resolution

Answers need to be stored in the user session likely. This is already the case however the code splits in two here, and handles the storage differently for SRS and "free" reviews (which might have been written better). The output is not the same either: free reviews display a nice grid of cards, where SRS review summary displays a table.