Make Row Stay Selected When Row Menu is Opened

[Ri-gers]

Whenever a row menu for a data table row is opened the corresponding row does not stay selected/highlighted. I would suggest to make it stay selected so it is clear to the user which row the menu belongs to.
Also, when scrolling the menu stays at the same position. I would suggest to either make it disappear entirely if scrolled or make it scroll together with the corresponding row.