feat: add footer with impressum and datenschutz links

src/components/Footer.astro

@@ -0,0 +1,26 @@
+---
+const currentYear = new Date().getFullYear()
+---
+
+<footer class="border-t border-stone-200 bg-stone-50 py-8">
+  <div class="mx-auto flex max-w-7xl flex-col items-center justify-between gap-4 px-6 sm:flex-row">
+    <p class="text-sm text-stone-500">
+      &copy; {currentYear} Haarscharf Crimmitschau
+    </p>
+    
+    <nav class="flex items-center gap-6">
+      <a 
+        href="/impressum" 
+        class="text-sm text-stone-600 transition-colors hover:text-stone-900"
+      >
+        Impressum
+      </a>
+      <a 
+        href="/datenschutz" 
+        class="text-sm text-stone-600 transition-colors hover:text-stone-900"
+      >
+        Datenschutz
+      </a>
+    </nav>
+  </div>
+</footer>