Summary: Old MasterDetail and DataTable (pre-power search) are using `extraActions` prop which no longer exists in teh new components. This diff adds a fallback.
Reviewed By: ivanmisuno
Differential Revision: D49869730
fbshipit-source-id: 4c1a658aa94acc770836f9bf296a3df7d6cdcb3e
Summary: Having default and extra actions at the bottom is not actionable. Users are used to haveing table controls on the top.
Reviewed By: LukeDefeo, aigoncharov
Differential Revision: D49538205
fbshipit-source-id: 724a31dc44de79cb0e09efae48dd2135450b34ae