Issue #1938920 by akalata, Jon Pugh, joelpittet, shanethehat, lauriii, martin107, nicholasruunu: Convert node_search_admin theme tables to table #type

Revert "Issue #1356602 by nicholasruunu, mcjim, rteijeiro, chrisjlee | jenlampton: Clean up icons in misc."

This clean-up accidentally introduced a few regressions, so rolling back until it's ready.

This reverts commit fab42693.