UNOList should have tooltips for name/value columns

[JeremyRand]

UNOList doesn't have a convenient way to see the full version of names or values that overflow their column width (unless you think the Transaction Details dialog is convenient). Setting a tooltip would be a straightforward way of improving the UX here.

[JeremyRand]

It looks like setData with a role of ToolTipRole is what we want here.