dialog: title & control customization with snippets, fixed callbacks

src/lib/index.ts

@@ -6,7 +6,14 @@ export { default as CenterBox } from './CenterBox.svelte';
 export { default as Checkbox, type CheckboxState } from './Checkbox.svelte';
 export { default as Combobox, type ComboboxOption } from './Combobox.svelte';
 export { default as DateInput } from './DateInput.svelte';
-export { default as Dialog, type DialogAPI, type DialogControls } from './Dialog.svelte';
+export {
+	default as Dialog,
+	type DialogAPI,
+	type DialogControls,
+	dialogCancelButton,
+	dialogCloseButton,
+	dialogOkButton
+} from './Dialog.svelte';
 export {
 	default as DurationInput,
 	formatDuration,