feat(analytics): add Plausible privacy-friendly analytics

Author: mroderick

app/views/layouts/application.html.haml

@@ -30,6 +30,12 @@
     = csrf_meta_tags
     = csp_meta_tag
 
+    <!-- Privacy-friendly analytics by Plausible -->
+    %script{ async: true, src: 'https://plausible.io/js/pa-PFruVsE_br97UUCRXE_6f.js' }
+    %script
+      window.plausible = window.plausible || function() { (plausible.q = plausible.q || []).push(arguments) }, plausible.init = plausible.init || function(i) { plausible.o = i || {} };
+      plausible.init()
+
   %body.no-js{ 'class': "#{params[:controller]}-#{params[:action]}", 'data-bs-no-jquery': 'true' }
     #top
       = render 'layouts/navigation'