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/packages/docs-ui/package.json

@@ -56,8 +56,8 @@
     "react-dom": ">=17"
   },
   "dependencies": {
-    "@medusajs/icons": "^1.0.0",
-    "@medusajs/ui": "^1.0.0",
+    "@medusajs/icons": "latest",
+    "@medusajs/ui": "latest",
     "@octokit/request": "^8.1.1",
     "@segment/analytics-next": "^1.55.0",
     "algoliasearch": "^4.20.0",