[Data View Management] Data view flyout is cut off in mobile view

[davismcphee]

The data view flyout gets cut off in mobile view with no way to scroll down to see matched indices (or advanced settings if expanded). While I doubt much data view management happens from mobile devices, it's likely just an overflow issue and should be an easy fix:

[elasticmachine]

Pinging @elastic/kibana-data-discovery (Team:DataDiscovery)

[akowalska622]

Apart from scrolling issues, we should reorder content (cc: @l-suarez), buttons should be pushed to the end of the container.

I'll handle that within the same ticket