feat: two factor authentication segment in preferences with mocked state (#600)

app/assets/javascripts/preferences/index.ts

@@ -0,0 +1,9 @@
+import { toDirective } from '../components/utils';
+import {
+  PreferencesViewWrapper,
+  PreferencesWrapperProps,
+} from './PreferencesView';
+
+export const PreferencesDirective = toDirective<PreferencesWrapperProps>(
+  PreferencesViewWrapper
+);