jellyfin-web/dashboard-ui/plugins.html

<div id="pluginsPage" data-role="page" class="page type-interior pluginConfigurationPage withTabs" data-helpurl="https://github.com/MediaBrowser/Wiki/wiki/Plugins" data-require="scripts/pluginspage">

    <div data-role="content">
        <div class="content-primary">
            <div class="installedPlugins"></div>
        </div>
    </div>
</div>