Migrate constants

Summary: We can't `*`-export as the symbols are invisible but being explicit about this seems like a good improvement anyway.

Reviewed By: danielbuechele

Differential Revision: D16666637

fbshipit-source-id: 8f9a14ed41f4d8ad93b4bab8dd54f3b6c9e24824

src/fb-stubs/constants.tsx

@@ -0,0 +1,26 @@
+/**
+ * Copyright 2018-present Facebook.
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ * @format
+ */
+
+export default Object.freeze({
+  GRAPH_APP_ID: '',
+  GRAPH_CLIENT_TOKEN: '',
+  GRAPH_ACCESS_TOKEN: '',
+
+  // this provides elevated access to scribe. we really shouldn't be exposing this.
+  // need to investigate how to abstract the scribe logging so it's safe.
+  GRAPH_SECRET: '',
+  GRAPH_SECRET_ACCESS_TOKEN: '',
+
+  // Provides access to Insights Validation endpoint on interngraph
+  INSIGHT_INTERN_APP_ID: '',
+  INSIGHT_INTERN_APP_TOKEN: '',
+
+  // Enables the flipper data to be exported through shareabale link
+  ENABLE_SHAREABLE_LINK: false,
+
+  IS_PUBLIC_BUILD: true,
+});