chore(docs): Updated UI Reference (automated) (#14181)

Automated changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action


---

> [!NOTE]
> Bumps Medusa UI-related dependencies across apps/packages and updates DatePicker prop type metadata in UI specs.
> 
> - **Dependencies**:
>   - Upgrade `@medusajs/icons` to `2.12.0` across apps/packages.
>   - Upgrade `@medusajs/ui` to `4.0.28` in `apps/api-reference`, `apps/ui`, and `packages/docs-ui`.
>   - Upgrade `@medusajs/ui-preset` to `2.12.0` in `apps/ui` and `packages/tailwind`.
>   - Update `yarn.lock` accordingly.
> - **UI Reference**:
>   - Update `DatePicker` prop type metadata for `onBlur`, `onFocus`, `onKeyDown`, and `onKeyUp` in `apps/ui/specs/components/DatePicker/DatePicker.json`.
> 
> <sup>Written by [Cursor Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit 222e08dc7d3aa920103aa9b35c50207dca4dd32f. This will update automatically on new commits. Configure [here](https://cursor.com/dashboard?tab=bugbot).</sup>


Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>

www/apps/user-guide/package.json

@@ -16,7 +16,7 @@
   "dependencies": {
     "@mdx-js/loader": "^3.1.0",
     "@mdx-js/react": "^3.1.0",
-    "@medusajs/icons": "2.11.3",
+    "@medusajs/icons": "2.12.0",
     "@next/mdx": "15.3.5",
     "@stefanprobst/rehype-extract-toc": "^3.0.0",
     "clsx": "^2.1.0",