docs(ui,docs): Add documentation for Medusa UI 2.0.0 (#5227)

* add docs for medusa ui 2.0.0

* fix: copy as child example

* fix: dropdown menu example

* add accordion examples

* fix lint issues

* fix apos in progress tabs demo

* resolve comments

* add icon

* bump z-index on modals to prevent clashing with navbar

* add sidebar item and card

* undo modal z index changes

* add links to updated and new components

* update version

* rm inline code formatting on links

---------

Co-authored-by: Shahed Nasser <shahednasser@gmail.com>

www/apps/ui/src/examples/code-block-no-lines.tsx

@@ -5,6 +5,7 @@ const snippets = [
     label: "Medusa React",
     language: "tsx",
     code: `import { useProduct } from "medusa-react"\n\nconst { product } = useProduct("PRODUCT_ID")\nconsole.log(product.id)`,
+    hideLineNumbers: true,
   },
 ]
 
@@ -17,7 +18,7 @@ export default function CodeBlockNoLines() {
             <Label weight={"plus"}>/product-detail.js</Label>
           </CodeBlock.Header.Meta>
         </CodeBlock.Header>
-        <CodeBlock.Body hideLineNumbers={true} />
+        <CodeBlock.Body />
       </CodeBlock>
     </div>
   )