feat: hide navbar items on smaller screens for improved responsiveness

shared/includes/docs/navbar.html

@@ -16,10 +16,10 @@
 			</div>
 			<div class="col d-flex">
 				<ul class="navbar-nav ms-auto gap-2">
-					<div class="nav-item">
+					<div class="nav-item d-none d-md-block">
 						<a href="https://preview.tabler.io" class="nav-link">Preview</a>
 					</div>
-					<div class="nav-item">
+					<div class="nav-item d-none d-md-block">
 						<a href="https://tabler.io/changelog" class="nav-link">Changelog</a>
 					</div>
 					<li class="nav-item hide-theme-dark">