Fix stereo speakers pair unsync

static/app.js

@@ -794,9 +794,13 @@ async function disconnectSpotify(button) {
     // The speaker not answering on the LAN is not a failure -- the room
     // still stops -- but it does leave the account signed in to it, and
     // that is the difference between "let go of" and "stopped".
+    // A stereo pair is only ever paused -- signing it out can leave one
+    // half silent -- so it staying signed in is the plan, not a failure.
     toast(data.signed_out
       ? `${data.device} let go of ${who}'s Spotify`
-      : `Stopped ${who}'s Spotify on ${data.device} — the speaker did not answer, so it stays signed in`,
+      : data.paired
+        ? `Paused ${who}'s Spotify on ${data.device}`
+        : `Stopped ${who}'s Spotify on ${data.device} — the speaker did not answer, so it stays signed in`,
       'ok');
     // The room stops with it, so drop the border, the transport row and the
     // song now rather than leaving a card that still claims to be playing;