Redo the translation system (steal from tabi)

templates/taxonomy_list.html

@@ -1,8 +1,10 @@
 {% extends "base.html" %}
 
 {% block content %}
-<h1>{{ trans(key="tags", lang=lang) }}</h1>
-<small>{{ terms | length }} {{ trans(key="tags_in_total", lang=lang) }}</small>
+{% set number_of_tags = terms | length %}
+<h1>{{ macros_translate::translate(key="tags", default="Tags", language_strings=language_strings) }}</h1>
+<small>{{ terms | length }} {{ macros_translate::translate(key="tags_in_total", number=number_of_tags, default="$NUMBER tags in total", language_strings=language_strings) }}
+</small>
 <br />
 <ul class="tags">
 	{% for tag in terms %}