Menu overflow in DataTable / Improvements to Wrangling Table

[robertutterback]

Clicking a menu in DataTable often causes scrolling, when really I want overflow. I partially fixed the issue with overflow: visible, but it still doesn't work right. I don't know enough about CSS, nor why the MDC classes seem to make overflow hidden.

Perhaps they discourage putting form elements in a data table, in which case I need a different component that looks similar.

[robertutterback]

Actually every file should probably be some kind of accordion panel. When not expanded, show a summary like the table row, and the ability to make simple edits. Expand the panel to make more advanced edits.