feat(components): add Header component

Author: usmonovshohruxmirzo

src/components/common/Navbar.astro

@@ -0,0 +1,15 @@
+<header>
+  <nav>
+    <ul>
+      <li>
+        <a href="#">Home</a>
+        <a href="#">Home</a>
+        <a href="#">Home</a>
+        <a href="#">Home</a>
+        <a href="#">Home</a>
+        <a href="#">Home</a>
+        <a href="#">Home</a>
+      </li>
+    </ul>
+  </nav>
+</header>

src/pages/index.astro

@@ -1,7 +1,8 @@
 ---
 import Layout from '../layouts/Layout.astro';
+import Navbar from '../components/common/Navbar.astro';
 ---
 
 <Layout>
-  <h1>NitroVim</h1>
+  <Navbar />
 </Layout>