appview/pages: fix following toggle hitbox on safari
the trending widget used a stretched link (absolute inset-0) inside a
position:relative table row. safari does not support positioned table
rows as containing blocks, so each row link stretched to a distant
ancestor and swallowed taps far outside the widget, e.g. the
global/following toggle on mobile. replace the table with real anchor
rows laid out on a grid.
Signed-off-by: Anirudh Oppiliappan <anirudh@tangled.org>