[Desktop] Loading screen (#2274)

Co-authored-by: huchenlei <huchenlei@proton.me>

src/router.ts

@@ -92,6 +92,12 @@ const router = createRouter({
           name: 'ManualConfigurationView',
           component: () => import('@/views/ManualConfigurationView.vue'),
           beforeEnter: guardElectronAccess
+        },
+        {
+          path: 'desktop-start',
+          name: 'DesktopStartView',
+          component: () => import('@/views/DesktopStartView.vue'),
+          beforeEnter: guardElectronAccess
         }
       ]
     }

src/views/DesktopStartView.vue

@@ -0,0 +1,13 @@
+<template>
+  <BaseViewTemplate dark>
+    <div class="max-w-screen-sm w-screen p-8">
+      <ProgressBar mode="indeterminate" />
+    </div>
+  </BaseViewTemplate>
+</template>
+
+<script setup lang="ts">
+import ProgressBar from 'primevue/progressbar'
+
+import BaseViewTemplate from './templates/BaseViewTemplate.vue'
+</script>