added progress bar and scheduler

frontend/dist/index.html

@@ -4,8 +4,8 @@
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title>Incus Backup UI</title>
-    <script type="module" crossorigin src="/assets/index-JZykJ0Bp.js"></script>
-    <link rel="stylesheet" crossorigin href="/assets/index-Dw_yq1Cq.css">
+    <script type="module" crossorigin src="/assets/index-IGuLjsuH.js"></script>
+    <link rel="stylesheet" crossorigin href="/assets/index-BhslfNoW.css">
   </head>
   <body>
     <div id="root"></div>