feat: added partial footer component

Author: coderdiaz

src/components/partials/Footer.astro

@@ -0,0 +1,11 @@
+---
+import Container from '@/components/Container.astro';
+---
+
+<footer class="pt-12">
+  <Container>
+    <p class="text-center text-muted-foreground text-sm">
+      &copy; {new Date().getFullYear()}. Powered by <a href="https://astro.build" target="_blank" rel="noopener noreferrer">Astro</a>.
+    </p>
+  </Container>
+</footer>