Posthog add reconnect event (#3953)

* Add Posthog events for Call reconnect including the reason

* Expose single trackCallReconnecting() entry point on PosthogAnalytics

* Track reconnect duration and align with existing analytics pattern

* Refactor combined$ to return [connected, reason] tuple

* Update firefoxUserPrefs to allow getUserMedia and enumerateDevices on CI
---------

Co-authored-by: Valere <bill.carson@valrsoft.com>
Co-authored-by: Robin <robin@robin.town>
Co-authored-by: Timo K <toger5@hotmail.de>

playwright/create-call.spec.ts

@@ -73,6 +73,9 @@ test("BugFix: When unmuting in lobby, you had to click twice to unmute in call",
   const microphoneButton = page.getByTestId("incall_mute");
   const cameraButton = page.getByTestId("incall_videomute");
 
+  // Wait for devices to enumerate before the button enables.
+  await expect(microphoneButton).toBeEnabled({ timeout: 10_000 });
+
   await microphoneButton.click();
   await cameraButton.click();