fix lint

Author: sunny.luo

src/index.ts

@@ -1,4 +1,4 @@
 export { Pushy } from './client';
 export { PushyContext, usePushy } from './context';
 export { PushyProvider } from './provider';
-export { PushyModule } from './core';
+export { PushyModule } from './core';