Right now, if the "Show description" setting is enabled for an activity we are not displaying the description in the section/s contents page.

We should display it to be consistent with Moodle web.

It is easy to know when that setting is enabled, right now if we receive a description for a module via the course_get_contents WS it means that is enabled:

if (!empty($cm->showdescription) or $cm->modname == 'label') {

    // We want to use the external format. However from reading get_formatted_content(), $cm->content format is always FORMAT_HTML.

    list($module['description'], $descriptionformat) = external_format_text($cm->content,

                                FORMAT_HTML, $modcontext->id, $cm->modname, 'intro', $cm->id);

}

For small screens (phones) description will be shortened and for tablets it will show the full text.