docs(playback): fit the release note back under the 400-character cap

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.changes/playback-stalker-stream-credentials.md

@@ -4,10 +4,9 @@ area: playback
 issues: [849, 910, 732]
 ---
 
-Stalker portal streams that require the portal session now play in the
-built-in players (HTML5, Video.js, ArtPlayer), not only in VLC/MPV: the
-player's own requests carry the portal cookie and token, scoped to that
-stream and dropped when the player closes or the channel changes. VOD,
-series and radio streams get the same portal headers live TV already had,
-including on same-host streaming ports and when opened from Favorites or
-Recently Viewed.
+Stalker streams that require the portal session now play in the built-in
+players (HTML5, Video.js, ArtPlayer), not only in VLC/MPV: the player's
+requests carry the portal cookie and token, scoped to that stream and
+dropped when the player closes or the channel changes. VOD, series and
+radio get the same headers live TV had — also from Favorites and Recently
+Viewed.