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/package.json

@@ -4,7 +4,8 @@
   "workspaces": {
     "packages": [
       "apps/*",
-      "packages/*"
+      "packages/*",
+      "!apps/ui-old"
     ]
   },
   "scripts": {