* Table: Update UX for single-reducer use case in new footer
* all cases are working; unit tests pass
* style and code cleanup in SummaryCell
* remove e2e test for sum reducer label
* reorganize code, todo tests
* slight style cleanup
* one more little reorganization
* updates based on CI failures
* update tests and docs
* unused prop
* update table footer image
* alt text, lint issue
* update gdev to create footer dashboard and re-point e2es there, add a few new cases
* remove console.log
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