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/specs/examples/switch-all-sizes.tsx

@@ -0,0 +1,20 @@
+import { Label, Switch } from "@medusajs/ui"
+
+export default function SwitchAllSizes() {
+  return (
+    <div className="flex flex-col gap-y-4">
+      <div className="flex items-center gap-x-2">
+        <Switch id="switch-small" size="small" />
+        <Label htmlFor="switch-small" size="small">
+          Small switch
+        </Label>
+      </div>
+      <div className="flex items-center gap-x-2">
+        <Switch id="switch-base" size="base" />
+        <Label htmlFor="switch-base" size="base">
+          Base switch
+        </Label>
+      </div>
+    </div>
+  )
+}