feat: loading error struct

web/app/components/plugins/install-plugin/base/loading.tsx

@@ -0,0 +1,23 @@
+'use client'
+import React from 'react'
+import Placeholder from '../../card/base/placeholder'
+import Checkbox from '@/app/components/base/checkbox'
+
+const Loading = () => {
+  return (
+    <div className='flex items-center space-x-2'>
+      <Checkbox
+        className='shrink-0'
+        checked={false}
+        disabled
+      />
+      <div className='grow relative p-4 pb-3 border-[0.5px] border-components-panel-border bg-components-panel-on-panel-item-bg hover-bg-components-panel-on-panel-item-bg rounded-xl shadow-xs'>
+        <Placeholder
+          wrapClassName='w-full'
+        />
+      </div>
+    </div>
+  )
+}
+
+export default React.memo(Loading)