UI freeze break request for Epiphany

[Iulian Radu <iulian radu67 gmail com>]

Hello all,

I attached a patch to this bug [0], updating the layout of the
downloads popover in Epiphany. Michael Catanzaro (CC'd) suggested I
should ask for a UI freeze break with the justification that this
popover is brand new in 3.20 and introducing it in one release and
redesigning it in the next one is a bad idea.

[0] https://bugzilla.gnome.org/show_bug.cgi?id=761857

Thank you,
Iulian