feat: aggiungi icona per il download dei dati nel footer

Author: aborruso

src/components/Footer.astro

@@ -74,6 +74,19 @@ try {
           </svg>
         </a>
 
+        <!-- Icona Dati -->
+        <a
+          href="https://raw.githubusercontent.com/ondata/referendum_iniziative_popolari/refs/heads/main/data/source.jsonl"
+          target="_blank"
+          rel="noopener noreferrer"
+          class="text-gray-400 hover:text-blue-500 transition-colors duration-200"
+          aria-label="Scarica dati (JSONL)"
+        >
+          <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 10v6m0 0l-3-3m3 3l3-3m2 8H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"></path>
+          </svg>
+        </a>
+
         <!-- Icona RSS -->
         <a
           href={createPath('/rss.xml')}