Update sample.astro

Braces in sample and testing updating for the first time.

src/components/sample.astro

@@ -98,7 +98,7 @@
                   class="text-red-400">io</span >;<br /> <br /> <span
                   class="text-blue-500">fn</span> <span
                   class="text-red-400">void</span> <span
-                  class="text-orange-400">main</span>() { <br /> <span
+                  class="text-orange-400">main</span>() <br />{<br /> <span
                   class="ml-5"> <span class="text-red-400">io</span>::<span
                   class="text-red-400">println</span>(<span
                   class="text-green-500">"Hello, world!"</span>); </span> <br />