Drop javascript from footer and add to only the pages it's needed on

The goal is to make it easier to restructure/reduce javascript in the future
if we only need to test the 3 pages it acts on.

_includes/footer.html

@@ -1,4 +1 @@
-<!-- general behavior -->
-<script type="module" src="{{ site.baseurl }}/scripts/dist/index.js"></script>
-
 <footer></footer>

_layouts/category.html

@@ -5,6 +5,8 @@
 {% assign datasets = site.datasets | where: "category", page.name %}
 {% assign datasets_count = datasets | size %}
 
+<script type="module" src="{{ site.baseurl }}/scripts/dist/index.js"></script>
+
 <div class="container">
   <div class="row">
     {% if page.logo and page.logo != empty %}

_layouts/organization.html

@@ -5,6 +5,8 @@
 {% assign datasets = site.datasets | where:"organization", page.title %}
 {% assign datasets_count = datasets | size %}
 
+<script type="module" src="{{ site.baseurl }}/scripts/dist/index.js"></script>
+
 <div class="container">
     <div class="row">
       {% if page.logo and page.logo != empty %}

datasets.html

@@ -6,6 +6,8 @@
 {% include breadcrumbs.html %}
 {% assign datasets_count = site.datasets | size %}
 
+<script type="module" src="{{ site.baseurl }}/scripts/dist/index.js"></script>
+
 <div class="row">
   <div class="col-sm-4">
     <h3>Categories</h3>