move hotjar include to analytics

Moving it together with similar includes.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

_includes/head.html

@@ -73,7 +73,7 @@
   {%- if site.local_search -%}
   <script defer src="/assets/js/search.js"></script>
   {%- endif -%}
-  {%- include feedback.html -%}
+  {%- include analytics/feedback.html -%}
 
   {%- comment -%}
   preload fonts: https://www.freecodecamp.org/news/web-fonts-in-2018-f191a48367e8/