Revert "Revert "feat: 第一个可以用的 ink 组件抽象 (#158)" (#175)"

This reverts commit 88d4c3ba24.

packages/@ant/ink/src/components/Spacer.tsx

@@ -0,0 +1,10 @@
+import React from 'react'
+import Box from './Box.js'
+
+/**
+ * A flexible space that expands along the major axis of its containing layout.
+ * It's useful as a shortcut for filling all the available spaces between elements.
+ */
+export default function Spacer() {
+  return <Box flexGrow={1} />
+}