port mintlify to fumadocs

components/mdx.tsx

@@ -0,0 +1,17 @@
+import defaultMdxComponents from 'fumadocs-ui/mdx';
+import type { MDXComponents } from 'mdx/types';
+import { mintlifyComponents } from './mintlify';
+
+export function getMDXComponents(components?: MDXComponents) {
+  return {
+    ...defaultMdxComponents,
+    ...mintlifyComponents,
+    ...components,
+  } satisfies MDXComponents;
+}
+
+export const useMDXComponents = getMDXComponents;
+
+declare global {
+  type MDXProvidedComponents = ReturnType<typeof getMDXComponents>;
+}