Actions menus that are near the right-hand side of the screen end up

being positioned too far to the right. This is easily seen with the

Follow menu. The logic, copied from Ink, was incorrect in its

calculations, and ended up off by the difference between the window

width and the right edge of the handle element.
It now attempts to more carefully place this on the screen without

scrolling off the side. First, it tries to right-align it to the parent

handle. If that's still off the side, then it tries to align it to the

right-most pixel of the window. And then, if we're off the left-hand

side, it tries to align to the left-most pixel of the window.
This logic will also be copied over to Ink.

Tested all the action menus I could find, and also tested with this

logic in Ink menus exhibiting the issue.