lighthouse fixes

src/pages/_includes/layout/footer.html

@@ -5,7 +5,7 @@
 				<ul class="list-inline list-inline-dots mb-0">
 					<li class="list-inline-item"><a href="{{ site.base }}/docs/index.html" class="link-secondary">Documentation</a></li>
 					<li class="list-inline-item"><a href="{{ site.base }}/license.html" class="link-secondary">License</a></li>
-					<li class="list-inline-item"><a href="{{ site.github-url }}" target="_blank" class="link-secondary">Source code</a></li>
+					<li class="list-inline-item"><a href="{{ site.github-url }}" target="_blank" class="link-secondary" rel="noopener">Source code</a></li>
 				</ul>
 			</div>
 			<div class="col-12 col-lg-auto mt-3 mt-lg-0">

src/pages/_layouts/base.html

@@ -28,9 +28,7 @@
 		<link rel="icon" href="{{ site.base }}/favicon.ico" type="image/x-icon"/>
 		<link rel="shortcut icon" href="{{ site.base }}/favicon.ico" type="image/x-icon"/>
 
-		{% if page.description %}
-			<meta name="description" content="{{ page.description | escape }}"/>
-		{% endif %}
+		<meta name="description" content="{{ page.description | default: 'Tabler comes with tons of well-designed components and features. Start your adventure with Tabler and make your dashboard great again. For free!' | escape }}"/>
 
 		{% include layout/og.html %}
 	{% endif %}