Hide E2EE behind a flag

Signed-off-by: Šimon Brandner <simon.bra.ag@gmail.com>

src/settings/useSetting.ts

@@ -104,6 +104,9 @@ export const useDeveloperSettingsTab = () =>
 export const useShowConnectionStats = () =>
   useSetting("show-connection-stats", false);
 
+export const useEnableE2EE = () =>
+  useSetting("enable-end-to-end-encryption", false);
+
 export const useDefaultDevices = () =>
   useSetting("defaultDevices", {
     audioinput: "",