Added italian i18n (#80)

Author: GoOz

css/app.css

@@ -443,6 +443,9 @@ input[type="file"]:is(:hover, :focus, :active)::file-selector-button {
 .tab.es::after {
   content: "🇪🇸";
 }
+.tab.it::after {
+  content: "🇮🇹";
+}
 
 .tab-panel {
   border-top: 1px solid var(--grey);

eleventy.config.js

@@ -30,7 +30,7 @@ export default async function (eleventyConfig) {
     },
   });
   eleventyConfig.addPlugin(geti18nCollection, {
-    locale: ["en", "fr", "ru", "pl", "es"],
+    locale: ["en", "fr", "ru", "pl", "es", "it"],
   });
 
   eleventyConfig.addPassthroughCopy("img");