Fix flipper-pkg publishing

Summary: Command "oclif-dev manifest" is failing without esModuleInterop set to true, even though it is specified in base config. Because of this, automatic publishing to npm failed yesterday.

Reviewed By: jknoxville

Differential Revision: D21972747

fbshipit-source-id: ccdd34833f7beb4fbd79a97beeacaf012d5cb0cb

desktop/pkg/tsconfig.json

@@ -2,7 +2,8 @@
   "extends": "../tsconfig.base.json",
   "compilerOptions": {
     "outDir": "lib",
-    "rootDir": "src"
+    "rootDir": "src",
+    "esModuleInterop": true
   },
   "references": [
     {"path": "../pkg-lib"},