refactor: improve board manage page (#323)

* refactor: improve board manage page

* chore: address pull request feedback

apps/nextjs/src/components/manage/boards/add-board-modal.tsx

@@ -57,5 +57,5 @@ export const AddBoardModal = createModal<InnerProps>(
     );
   },
 ).withOptions({
-  defaultTitle: (t) => t("management.page.board.button.create"),
+  defaultTitle: (t) => t("management.page.board.action.new.label"),
 });