Revert "Cleaning up unnecessary tags in show pages"

Maybe this wasn't so unnecessary after all.

This reverts commit 3724a6bdcb6ee7103febf92fc031d671c0df1c01.
Reverts removal of selecting included graphs
Splits selection of data sets in cucumber based on UI
Selecting datasets now requires JS
inLegend now defaults to false

This changed for [#41907551]
These get DataSets now.

I'm not sure why they didn't before, and why they didn't break, but now they're fixed.