appview: oauth: use icyphox.sh/atproto-oauth
Improved logging and adds a 5s tolerance to the iat claim so PDSes with
a slightly skewed clock (or just aggressive timestamp checks) should
work.
Signed-off-by: Anirudh Oppiliappan <anirudh@tangled.sh>
authored by
anirudh.fi
and committed by
Tangled
41993280
d4332d6d