old_contents: import { hot } from 'react-hot-loader/root';
  import React from 'react';
  import { ProtonApp, useAuthentication, useInstance } from 'react-components';
  import createSecureSessionStorage from 'proton-shared/lib/createSecureSessionStorage';
  import { MAILBOX_PASSWORD_KEY, UID_KEY } from 'proton-shared/lib/constants';
  import sentry from 'proton-shared/lib/helpers/sentry';
  
  import * as config from './config';
  import PrivateApp from './PrivateApp';
  import PublicApp from './PublicApp';
  
  import './app.scss';
  
  sentry(config);
  
  const Setup = () => {
      const { UID, login, logout } = useAuthentication();
      if (UID) {
          return <PrivateApp onLogout={logout} />;
      }
      return <PublicApp onLogin={login} />;
  };
  
  const App = () => {
      const storage = useInstance(() => createSecureSessionStorage([MAILBOX_PASSWORD_KEY, UID_KEY]));
      return (
          <ProtonApp config={config} storage={storage}>
              <Setup />
          </ProtonApp>
      );
  };
  
  export default hot(App);
  
new_contents: import { hot } from 'react-hot-loader/root';
  import React from 'react';
  import { ProtonApp, useAuthentication } from 'react-components';
  import sentry from 'proton-shared/lib/helpers/sentry';
  
  import * as config from './config';
  import PrivateApp from './PrivateApp';
  import PublicApp from './PublicApp';
  
  import './app.scss';
  
  sentry(config);
  
  const Setup = () => {
      const { UID, login, logout } = useAuthentication();
      if (UID) {
          return <PrivateApp onLogout={logout} />;
      }
      return <PublicApp onLogin={login} />;
  };
  
  const App = () => {
      return (
          <ProtonApp config={config}>
              <Setup />
          </ProtonApp>
      );
  };
  
  export default hot(App);
  
subject: Move back session storage creation