add toolbar builder

src/lib/index.ts

@@ -24,3 +24,9 @@ export { default as TimezoneInput } from './TimezoneInput.svelte';
 export { default as ToggleGroup } from './ToggleGroup.svelte';
 export { default as ToggleSelect } from './ToggleSelect.svelte';
 export { type Option, type MaybeGetter, getLabel, getValue } from './util';
+export {
+	type ToolbarToggleState,
+	type ToolbarToggleOptions,
+	ToolbarGroup,
+	Toolbar
+} from './Toolbar';