chore(calls): bump @lotusguild/element-call-embedded to 0.25.0-lotus.4

Picks up the fork fix where "Mute Screenshare Audio" was undone whenever the
sharer stopped and re-shared (EC's own volume controls wrote volume 1 through
the same setter). The mute now rides the renderer's `muted` prop like deafen
does. Docs: fork feature table gains the deafen/screenshare-audio row; the
soundboard + quality rows are marked verified end-to-end.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

package.json

@@ -107,7 +107,7 @@
     "workbox-precaching": "7.4.1"
   },
   "devDependencies": {
-    "@lotusguild/element-call-embedded": "0.25.0-lotus.3",
+    "@lotusguild/element-call-embedded": "0.25.0-lotus.4",
     "@playwright/test": "1.63.0",
     "@rollup/plugin-inject": "5.0.5",
     "@rollup/plugin-wasm": "6.2.2",