Add spinner

public/index.html

@@ -45,6 +45,7 @@
                     style="animation-delay: 0.3s;">
                     Check Status
                 </button>
+                <div id="loadingSpinner" class="loading-spinner"></div>
             </form>
             <div id="statusResult" class="mt-8 hidden">
                 <h2 class="text-2xl font-semibold text-blue-400 animate-slide-in">Server Status</h2>
@@ -60,4 +61,4 @@
     <script src="js/app.js"></script>
 </body>
 
-</html>
+</html>