Page with Search Sidebar header small text goes here...
Add the form element to sidebar with data-sidebar-search="true"
attribute in order to turn on the sidebar search feature.
<div id="sidebar" class="app-sidebar">
<div class="menu">
<div class="menu-search mb-n3">
<input type="text" class="form-control" placeholder="Sidebar menu filter..." data-sidebar-search="true">
</div>
</div>
...
</div>
<div class="app-sidebar-bg"></div>