Misago/frontend/src/initializers/mobile-navbar-dropdown.js

import misago from 'misago/index';
import dropdown from 'misago/services/mobile-navbar-dropdown';

export default function initializer() {
  let element = document.getElementById('mobile-navbar-dropdown-mount');
  if (element) {
    dropdown.init(element);
  }
}

misago.addInitializer({
  name: 'dropdown',
  initializer: initializer,
  before: 'store'
});