V3

Many many many changes, honestly just read the release notes

docs/src/mdx-components.ts

@@ -0,0 +1,13 @@
+import { useMDXComponents as getThemeComponents } from "nextra-theme-docs";
+import { MDXComponents } from "nextra/mdx-components";
+
+// Get the default MDX components
+const themeComponents = getThemeComponents();
+
+// Merge components
+export function useMDXComponents(components: MDXComponents) {
+  return {
+    ...themeComponents,
+    ...components,
+  };
+}