refactor: reorganize all components (#8303)

src/checkbox-group/index.ts

@@ -0,0 +1,8 @@
+import { installable } from '../utils';
+import _CheckboxGroup from './CheckboxGroup';
+
+const CheckboxGroup = installable(_CheckboxGroup);
+
+export default CheckboxGroup;
+export { CheckboxGroup };
+export type { CheckboxGroupToggleAllOptions } from './CheckboxGroup';