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/.gitignore

@@ -8,4 +8,5 @@ node_modules
 !.yarn/releases
 !.yarn/sdks
 !.yarn/versions
-.env.local
+.env.local
+ui-old