feat: add base skeleton component (#11339)

web/app/components/base/skeleton/index.tsx

@@ -0,0 +1,47 @@
+import type { ComponentProps, FC } from 'react'
+import classNames from '@/utils/classnames'
+
+type SkeletonProps = ComponentProps<'div'>
+
+export const SkeletonContanier: FC<SkeletonProps> = (props) => {
+  const { className, children, ...rest } = props
+  return (
+    <div className={classNames('flex flex-col gap-1', className)} {...rest}>
+      {children}
+    </div>
+  )
+}
+
+export const SkeletonRow: FC<SkeletonProps> = (props) => {
+  const { className, children, ...rest } = props
+  return (
+    <div className={classNames('flex items-center gap-2', className)} {...rest}>
+      {children}
+    </div>
+  )
+}
+
+export const SkeletonRectangle: FC<SkeletonProps> = (props) => {
+  const { className, children, ...rest } = props
+  return (
+    <div className={classNames('h-2 rounded-sm opacity-20 bg-text-tertiary my-1', className)} {...rest}>
+      {children}
+    </div>
+  )
+}
+
+export const SkeletonPoint: FC = () =>
+  <div className='text-text-quaternary text-xs font-medium'>·</div>
+
+/** Usage
+ * <SkeletonContanier>
+ *  <SkeletonRow>
+ *    <SkeletonRectangle className="w-96" />
+ *    <SkeletonPoint />
+ *    <SkeletonRectangle className="w-96" />
+ *  </SkeletonRow>
+ *  <SkeletonRow>
+ *    <SkeletonRectangle className="w-96" />
+ *  </SkeletonRow>
+ * <SkeletonRow>
+ */