fix: update banner script loading condition to production environment

shared/layouts/docs/default.html

@@ -197,7 +197,7 @@
 	<script src="/dist/js/tabler{% if environment != 'development' %}.min{% endif %}.js"></script>
 	<script src="/js/docs{% if environment != 'development' %}.min{% endif %}.js" defer></script>
 
-	{% if environment == 'preview' %}
+	{% if environment == 'production' %}
 	<script src="https://scripts.tabler.io/banner.js" defer data-tblr-ref="tabler-docs"></script>
 	{% endif %}
 </body>