v1.8.1

Back from a conversation goes to the conversation list.

Crossing between someone's SMS and Signal threads used to leave the screen you
came from underneath the one you went to, so hopping between the two a few times
buried the list under a stack of thread screens and the back arrow walked down
through every one of them. Crossing replaces the screen it leaves.

A reply now shows what it is replying to. The bridge has always known — Signal
names the message a reply answers, and it was kept and carried all the way to
the phone — but nothing drew it, so a reply arrived as an ordinary message and,
in a group, answered nothing you could see. It sits above the message in the
quieter colour, on the phone and in the browser alike. A conversation fills from
the day the bridge was paired, so what a reply answers is sometimes older than
anything here; that says so rather than showing nothing.

The conversation list has no overflow button any more. It held one item, and on
this screen that button costs the filter tabs their full names. Mark all read is
in Settings now, at the top with Archived and Scheduled, and it still appears
with the other actions when conversations are selected. The settings cog has
moved to the right edge, where the overflow used to be.

Full Changelog: v1.8.0...v1.8.1