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/public/images/search-hit-arrow-light.svg

@@ -0,0 +1,4 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M7.99984 8.66669L4.6665 12L7.99984 15.3334" stroke="#889096" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M15.3332 4.66669V9.33335C15.3332 10.0406 15.0522 10.7189 14.5521 11.219C14.052 11.7191 13.3737 12 12.6665 12H4.6665" stroke="#889096" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>