Restore EOF newline

Author: imnasnainaec

__mocks__/papi-backend.ts

@@ -62,4 +62,4 @@ module.exports = {
 };
 
 /** Marks this file as a module so top-level const/let are module-scoped; avoids TS "redeclare" when both papi-backend and papi-frontend mocks are in the project (they are used mutually exclusively by Jest). */
-export {};
+export {};