feat: add account merging functionality with dialog support; update bulk actions to include merge option

components/accounts/index.ts

@@ -1,4 +1,5 @@
 export { AccountCard } from "./account-card";
 export { AccountEditDialog } from "./account-edit-dialog";
+export { AccountMergeSelectDialog } from "./account-merge-select-dialog";
 export { AccountBulkActions } from "./account-bulk-actions";
 export { accountTypeIcons, accountTypeLabels } from "./constants";