Move meta tags into a partial

source/_partials/meta.html.twig

@@ -0,0 +1,10 @@
+<meta charset="UTF-8">
+<meta http-equiv="X-UA-Compatible" content="IE=edge">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<link rel="canonical" href="{{ site.url }}{{ page.url }}" />
+
+{% if page.meta.description %}
+    <meta name="description" content="{{ page.meta.description|e('html') }}">
+{% endif %}
+
+{% include 'og' with { og: page.meta.og } %}