Don't show MoveToAction when WellSampleData is selected (rebased onto develop)



This is the same as gh-2231 but rebased onto develop.

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Fix for: https://trac.openmicroscopy.org.uk/ome/ticket/11999
Prevent users from trying to move single wells to other group.

Test:
Open a screen, right click on a well, make sure that there is no "Move To Group" in context menu.