feat: sort tags ignoring case and accents

eleventy.config.js

@@ -61,7 +61,9 @@ module.exports = function(eleventyConfig) {
     for(let item of collection) {
       (item.data.tags || []).forEach(tag => tagSet.add(tag));
     }
-    return Array.from(tagSet).sort();
+    return Array.from(tagSet).sort((a, b) => {
+      return a.localeCompare(b, undefined, {sensitivity: 'base'});
+    });
   });
 
   eleventyConfig.addFilter("filterTagList", function filterTagList(tags) {