docs: migrate UI docs (#13245)

* docs: create a new UI docs project (#13233)

* docs: create a new UI docs project

* fix installation errors

* docs: migrate UI docs content to new project (#13241)

* Fix content

* added examples for some components

* finish adding examples

* lint fix

* fix build errors

* delete empty files

* path fixes + refactor

* fix build error

www/apps/ui/specs/examples/code-block-single.tsx

@@ -0,0 +1,24 @@
+import { CodeBlock, Label } from "@medusajs/ui"
+
+const snippets = [
+  {
+    label: "Medusa JS SDK",
+    language: "jsx",
+    code: `console.log("Hello, World!")`,
+  },
+]
+
+export default function CodeBlockSingle() {
+  return (
+    <div className="w-full">
+      <CodeBlock snippets={snippets}>
+        <CodeBlock.Header hideLabels={true}>
+          <CodeBlock.Header.Meta>
+            <Label weight={"plus"}>/product-detail.js</Label>
+          </CodeBlock.Header.Meta>
+        </CodeBlock.Header>
+        <CodeBlock.Body />
+      </CodeBlock>
+    </div>
+  )
+}