[wip] strip extra .js from reverseExports

packages/core/src/module-resolver.ts

@@ -27,7 +27,7 @@ import type UserOptions from './options';
 
 // this is an overly simple example of the function that we need. It needs to become its own package with its own tests
 function reversePackageExports(packageJSON: PackageInfo, relativePath: string): string {
-  return posix.join(packageJSON.name, relativePath.replace(/^.\/dist\//, `./`));
+  return posix.join(packageJSON.name, relativePath.replace(/^.\/dist\//, `./`).replace(/\.js$/, ''));
 }
 
 const debug = makeDebug('embroider:resolver');