add author to blog posts

Signed-off-by: Hadi <112569860+anotherhadi@users.noreply.github.com>

src/components/Author.astro

@@ -0,0 +1,18 @@
+---
+import { Image } from "astro:assets";
+const avatar = "/avatar.jpg";
+const username = "anotherhadi"
+const bio = "Infosec engineer."
+
+---
+<div class="flex gap-3 justify-start">
+  <div
+    class="ring-base-300 ring-offset-base-100 rounded-full ring-2 ring-offset-2 flex justify-center items-center"
+  >
+    <Image src={avatar} alt="anotherhadi avatar" class="rounded-full m-auto" width={36} height={36}/>
+  </div>
+  <div>
+    <p class="text-sm font-semibold"><a href="/"><span class="text-base-content/40">@</span>{username}</a></p>
+    <p class="text-xs text-base-content/60">{bio}</p>
+  </div>
+</div>