Add LocalTrackRecorder helper (#1430)

Author: lukasIO

.changeset/brave-beds-burn.md

@@ -0,0 +1,5 @@
+---
+"livekit-client": patch
+---
+
+Add LocalTrackRecorder helper

examples/demo/demo.ts

@@ -269,6 +269,7 @@ const appActions = {
             timestamp: info.timestamp,
             message: await reader.readAll(),
           },
+
           room.getParticipantByIdentity(participant?.identity),
         );
 

package.json

@@ -90,7 +90,8 @@
     "eslint-plugin-ecmascript-compat": "^3.2.1",
     "eslint-plugin-import": "2.31.0",
     "gh-pages": "6.3.0",
-    "happy-dom": "^15.10.2",
+    "happy-dom": "^17.2.0",
+    "jsdom": "^26.1.0",
     "prettier": "^3.4.2",
     "rollup": "4.41.0",
     "rollup-plugin-delete": "^2.1.0",