input/seatop_default: fix focusing floating titles
input/seatop_default: fix focusing floating titles

When clicking on the titlebar of a floating container (or descendant of
a floating container), the top-level floating container was being
focused and then allowing you to move the top-level floating container.
This made it so you couldn't switch to a different tab/stack within the
floating container. With this patch, the focus inactive view for the
container that the titlebar is associated with is focused, then the
traversal to the top-level floating container is performed to use with
the move floating operation.

1ace/sway,ascent12/sway,1ace/sway,1ace/sway,ascent12/sway,SirCmpwn/sway,ascent12/sway