* Add shimmering-loader CSS to ui-patterns.
* Import the shimmering-loader classes from the ui-patterns component.
* Remove ShimmeringLoader from studio.
* Migrate studio to use ui-patterns/ShimmeringLoader.
* Migrate away from using default import for ShimmeringLoader.
* Fix the css imports in docs and studio.
* Add lucide-react to docs (to make the autocomplete work).
* Migrate the docs app icons.
* Migrate the ui-patterns.
* Remove the old icons from ui package.
* Migrate the www app from react-feather icons.
* Migrate all of studio icons.
* Migrate the only component in design-system.
* Fix an old import in ui package. Revert an import in docs app.
* Fix some pages in www.
* Remove unneeded files used in generation of icons.
* Fix a prettier error.
* Fix more issues in www.
* Fix an issue in Log Date picker.
* Replace all string sizes with number sizes because the icons grew in some cases.
* Fix more imports in security page.
* Fix an extra import.
* Remove the size prop from all icons if they're in a button and they match the button size.
* Minor fixes for docs and www.
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Co-authored-by: Joshen Lim <joshenlimek@gmail.com>