fix: add type export statement to workspace-backpack (#2148)

Co-authored-by: jjfive <[email protected]>

Author: ktaicoder

plugins/workspace-backpack/src/index.ts

@@ -6,4 +6,4 @@
 
 export {Backpack} from './backpack';
 export * from './ui_events';
-export {BackpackOptions, BackpackContextMenuOptions} from './options';
+export type {BackpackOptions, BackpackContextMenuOptions} from './options';