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/vercel.json

@@ -3,11 +3,5 @@
   "installCommand": "yarn install",
   "buildCommand": "turbo run build",
   "outputDirectory": ".next",
-  "ignoreCommand": "bash ../../ignore-build-script.sh ui",
-  "redirects": [
-    {
-      "source": "/ui/hooks/use-toast",
-      "destination": "/upgrade-guides/medusa-ui/3-0-0"
-    }
-  ]
+  "ignoreCommand": "bash ../../ignore-build-script.sh ui"
 }