Fix documentation search localisation (#167)

Author: keunes

assets/search-indexes/documentation_search.json

@@ -0,0 +1,14 @@
+---
+layout: null
+---
+[
+  {% for documentation in site.documentation %}
+    {% capture title %}{% t {{ documentation.title }} %}{% endcapture %}
+    {
+      "title"    : "{{ title | escape }}",
+      "url"      : "{% if site.lang != "en" %}/{{ site.lang }}{% endif %}{{ documentation.url | replace:'.html','' }}",
+      "content"  : {{ documentation.content | strip_html | strip_newlines | jsonify }}
+    } {% unless forloop.last %},{% endunless %}
+  {% endfor %}
+]
+

documentation.html

@@ -41,7 +41,7 @@ <h1 class="color-gray-800 weight-700">{% t titles.documentation %}</h1>
       searchResultTemplate: '<li><a href="{url}">{title}</a></li>',
       limit: 5,
       fuzzy: false,
-      json: '/search.json'
+      json: '{% if site.lang != "en" %}/{{ site.lang }}{% endif %}/assets/search-indexes/documentation_search.json'
     })
   });
 </script>