v6.8.1: the downloads point at desktop 1.0.3

Desktop 1.0.3 fixes video on a call placed after a group call — the two shared
one peer connection, the second call opened a second video section, and the two
H264 profiles collided, so the call carried sound and no picture. It also ships
the STUN and TURN list this client uses, which is what lets a browser and a
desktop agree on a path instead of one of them offering no relay at all.

The version lives in two places on this side (the landing page and the download
grid), and the consistency test also reads the README badge, the changelog and
the cryptography document, so all of them move together.

Riding along: the group status dot now takes its colour from the theme in the
call and group views, which is what the desktop's copy of groupsStore.js was
compared against.

Claude-Session: https://claude.ai/code/session_019RCW2Fm7dkAaU2zeHDksei

CHANGELOG.md

@@ -1,5 +1,16 @@
 # Changelog
 
+## v6.8.1 — Desktop 1.0.3
+
+The download buttons point at desktop 1.0.3. That release fixes video on a call
+placed after a group call — the two shared one connection, opened a second video
+section, and the call carried sound with no picture — and it carries the same
+STUN and TURN servers this web client uses, so a desktop and a browser can agree
+on a path instead of one of them offering no relay at all.
+
+Light theme colours: the group status dot now reads its colour from the theme in
+the call and group views as well.
+
 ## v6.8.0 — Light theme
 
 Added a light theme. The switch is in the header next to the language menu, with three