This looks very sharp! It’s so nice to finally get rid of those margin hacks.
A couple of minor things I noticed:
For PMs (both desktop and mobile)
1- I think the order has changed since we’re using
order: -1 it used to look like this
with the changes applied, it looks like this
This might be the desired result, but I wanted to mention it just in case.
2- the assign icon seems to have lost its margin and got a little bit darker
For topics (both desktop and mobile)
1- the same issue with the assign icon
it used to look like this
and it now looks like this