Do the same for page resource scripts as for page resource CSS files

Look up page resources matching *.js and include all of them as deferred module
scripts.

layouts/partials/head.html

@@ -50,6 +50,10 @@
   <script defer src="{{ `scripts/railroad-utils.js` | absURL }}"></script>
   {{ end }}
 
+  {{ range $script := .Resources.Match "*.js" }}
+  <script defer type="module" src="{{ $script.Permalink | relURL }}"></script>
+  {{ end }}
+
   <!-- Misc -->
   {{ if or hugo.IsProduction (eq site.Params.env "production") }}
   <!---->