feat(web-i18n): add es/fr locales and expand switcher locale set

apps/web/src/messages/fr.json

@@ -0,0 +1,19 @@
+{
+  "Home": {
+    "badge": "Application Web",
+    "title": "Votre Frontend CMS Next.js",
+    "description": "Cette page lit les publications via le package base de données partagé.",
+    "latestPosts": "Dernières publications",
+    "explore": "Explorer",
+    "noExcerpt": "Aucun extrait"
+  },
+  "LanguageSwitcher": {
+    "label": "Langue",
+    "localeNames": {
+      "de": "Allemand",
+      "en": "Anglais",
+      "es": "Espagnol",
+      "fr": "Français"
+    }
+  }
+}