fix ActionSelect stateless, add value prop

src/lib/index.ts

@@ -1,5 +1,5 @@
 // Reexport your entry components here
-export { default as ActionSelect } from './ActionSelect.svelte';
+export { default as ActionSelect, type ActionSelectOption } from './ActionSelect.svelte';
 export { default as Button } from './Button.svelte';
 export { default as CenterBox } from './CenterBox.svelte';
 export { default as Checkbox, type CheckboxState } from './Checkbox.svelte';