chore: update regex for modern app (#2389)

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

Author: ScriptedAlchemy

apps/modernjs/modern.config.ts

@@ -19,6 +19,7 @@ export default defineConfig({
     include: [
       // should set module-federation in outer repo
       /universe\/packages/,
+      /core\/packages/,
     ],
   },
   // source: {