Documentation Updates (#79)

* Docs: Added Shadcn sidebar; added algorithm to automatically infer parents without needing to specify it.
* Extracted Markdoc compilation in a separate file
* Site Navigation: simplify nav by removing the border
* Docs Navigation: added TOC; improved layout on mobile

packages/cms/keystatic/src/markdoc.tsx

@@ -0,0 +1,30 @@
+import React from 'react';
+
+import { Node } from '@markdoc/markdoc';
+
+import {
+  CustomMarkdocComponents,
+  CustomMarkdocTags,
+} from './custom-components';
+import { MarkdocNodes } from './markdoc-nodes';
+
+/**
+ * @name renderMarkdoc
+ * @description Renders a Markdoc tree to React
+ */
+export async function renderMarkdoc(node: Node) {
+  const { transform, renderers } = await import('@markdoc/markdoc');
+
+  const content = transform(node, {
+    tags: {
+      ...CustomMarkdocTags,
+    },
+    nodes: {
+      ...MarkdocNodes,
+    },
+  });
+
+  return renderers.react(content, React, {
+    components: CustomMarkdocComponents,
+  });
+}