RFD: lift announcements

[alexreardon]

We are moving away from aria-roledescription for our lift announcements #1238 #1385 . We are moving to aria-labelledby={ElementId} and pointing it to a visually hidden div. This yields a more consistent screen reader experience and scores better for accessibility tooling

liftInstruction will need to be static text that we just dump into a div

Options:

• liftInstruction prop on DragDropContext and all drag handles share the same lift instruction. This way we only need to created one visually hidden div (already implemented in our virtual branch)
• liftInstruction prop on drag handle and each drag handle gets it's very own visually hidden div. This allows for customisation between handles, but is pretty heavy.
• go for liftInstruction on the DragDropContext and consumers can override aria-labelledby on a specific drag handle if they want it to be different from the others

[alexreardon]

Shipped in #1487