chore: uiv2 docz custom page (#1511)

* feat: Customized Docz Layout

* manually apply padding into playground

* fix playground bug -- sticky items

* fix window

* remove specifc tailwind style for docz

platform/ui/src/components/Input/Input.mdx

@@ -15,7 +15,7 @@ import Input from './';
   {() => {
     const [inputValue, setInputValue] = React.useState('');
     return (
-      <div>
+      <div className="p-4">
         <Input
           transparent
           containerClassName="mb-3"