Update navigation link to use full URL

Author: TheOddCell

topbar.html

@@ -1,6 +1,6 @@
 <div class="nav-left">
                 <img src="https://obsidianos.xyz/logo.svg" alt="ObsidianOS Logo" class="nav-logo" />
-                <a href="/" class="nav-title">ObsidianOS</a>
+                <a href="https://obsidianos.xyz/" class="nav-title">ObsidianOS</a>
             </div>
             <div class="nav-links">
                 <a href="https://files.obsidianos.xyz/">Downloads</a>