Misago/frontend/src/initializers/page-title.js

import misago from 'misago/index';
import title from 'misago/services/page-title';

export default function initializer(context) {
  title.init(
    context.get('SETTINGS').forum_index_title,
    context.get('SETTINGS').forum_name
  );
}

misago.addInitializer({
  name: 'page-title',
  initializer: initializer
});