Fix to-device encryption info label (#3208)

* Fix to-device encryption info label
The label was shown also without checking that we use PerParticipantE2EE. Which is a prerequisite for toDevice transport. As a result the label was shown when not desired.

* rename: useLiveKit -> useLivekit

* make the settings naming consistent

src/settings/SettingsModal.tsx

@@ -23,7 +23,7 @@ import {
 import { widget } from "../widget";
 import {
   useSetting,
-  soundEffectVolumeSetting,
+  soundEffectVolume as soundEffectVolumeSetting,
   backgroundBlur as backgroundBlurSetting,
   developerMode,
 } from "./settings";