docs(styled/install): add missing exports for barrel files users

Author: maiieul

apps/website/src/routes/docs/styled/(getting-started)/install/index.mdx

@@ -243,6 +243,7 @@ export * from './button/button';
 export * from './card/card';
 export * from './checkbox/checkbox';
 export * from './combobox/combobox';
+export * from './dropdown/dropdown';
 export * from './input/input';
 export * from './label/label';
 export * from './modal/modal';
@@ -254,6 +255,8 @@ export * from './skeleton/skeleton';
 export * from './tabs/tabs';
 export * from './textarea/textarea';
 export * from './select/select';
+export * from './toggle/toggle';
+export * from './toggle-group/toggle-group';
 ```
 
 This way you can now `import { Accordion, Alert, ... } from '~/components/ui';` 👯‍♀️