TabIndex in Menu

[AriLFrankel]

The way that tabIndices are implemented in the Menu component leads to awkward focus behavior:
Open the menu and the first item is in hover state. Mousing through other options the first option remains in hover state

Removing the tabIndex would resolve this issue but be counterproductive to our efforts to increase accessibility in SMC

Ideal behavior would be that the menu is tab-able but does not trigger the hover state on the first item