Remove i18n, keep only Italian and rely on browser translation

The interface was translated in en/it/es/fr via @nuxtjs/i18n. Drop the
module, the locale files, and the language switcher: the UI is now
static Italian text, with translation for foreign visitors left to the
Google Translate browser extension instead of the app.

frontend/app/pages/index.vue

@@ -1,8 +1,6 @@
 <script setup lang="ts">
 import type { ArticleSummary, Paginated } from '#shared/types/blog'
 
-const { t, locale } = useI18n()
-
 const { data, error } = await useFetch<Paginated<ArticleSummary>>('/api/articles', {
   key: 'home-articles',
   query: { page: 1 },
@@ -24,9 +22,9 @@ useHead({ titleTemplate: '%s', link: [{ rel: 'canonical', href: canonical }] })
 
 useSeoMeta({
   title: SITE_NAME,
-  description: () => t('site.tagline'),
+  description: 'Articoli, guide e analisi.',
   ogTitle: SITE_NAME,
-  ogDescription: () => t('site.tagline'),
+  ogDescription: 'Articoli, guide e analisi.',
   ogType: 'website',
   ogUrl: canonical,
   ogImage: `${config.siteUrl}/logo.png`,
@@ -35,13 +33,13 @@ useSeoMeta({
 
 <template>
   <div>
-    <p v-if="error">{{ $t('list.failed') }}</p>
+    <p v-if="error">Non è stato possibile caricare gli articoli. Riprova più tardi.</p>
 
-    <p v-else-if="!featured">{{ $t('list.empty') }}</p>
+    <p v-else-if="!featured">Non è stato ancora pubblicato nulla.</p>
 
     <template v-else>
       <article class="featured" :class="{ 'has-cover': featuredCover }">
-        <NuxtLinkLocale
+        <NuxtLink
           v-if="featuredCover"
           class="featured-cover"
           :to="`/blog/${featured.slug}`"
@@ -54,30 +52,30 @@ useSeoMeta({
             :width="featured.cover?.width ?? undefined"
             :height="featured.cover?.height ?? undefined"
           >
-        </NuxtLinkLocale>
+        </NuxtLink>
 
         <div class="featured-text">
           <p class="kicker">
-            {{ featured.category ? featured.category.name : $t('home.latest') }}
+            {{ featured.category ? featured.category.name : 'Ultimo' }}
           </p>
           <h1>
-            <NuxtLinkLocale :to="`/blog/${featured.slug}`">{{ featured.title }}</NuxtLinkLocale>
+            <NuxtLink :to="`/blog/${featured.slug}`">{{ featured.title }}</NuxtLink>
           </h1>
           <p class="kicker date">
             <time :datetime="isoDate(featured.publishedAt)">
-              {{ formatDate(featured.publishedAt, locale) }}
+              {{ formatDate(featured.publishedAt) }}
             </time>
           </p>
           <p class="read-more">
-            <NuxtLinkLocale :to="`/blog/${featured.slug}`">
-              {{ $t('home.readArticle') }}
-            </NuxtLinkLocale>
+            <NuxtLink :to="`/blog/${featured.slug}`">
+              Leggi l'articolo
+            </NuxtLink>
           </p>
         </div>
       </article>
 
       <template v-if="rest.length">
-        <h2 class="section-heading kicker">{{ $t('home.moreStories') }}</h2>
+        <h2 class="section-heading kicker">Altri articoli</h2>
 
         <ul class="card-grid">
           <li v-for="article in rest" :key="article.slug">
@@ -87,7 +85,7 @@ useSeoMeta({
       </template>
 
       <p class="more">
-        <NuxtLinkLocale to="/blog">{{ $t('home.viewAll') }}</NuxtLinkLocale>
+        <NuxtLink to="/blog">Vedi tutti gli articoli</NuxtLink>
       </p>
     </template>
   </div>