Refactor export data functions and exportpersistedstate function to just expect state

Summary: This diff refactors the `exportpersistedstate` and few of the functions in exportData.tsx to just expect the Redux State instead the store object.

Reviewed By: mweststrate

Differential Revision: D18733011

fbshipit-source-id: 56739917b49142ba4b6e79e7c16378fe60d6ac3b

headless/index.tsx

@@ -177,7 +177,9 @@ async function exitActions(
           );
           outputAndExit(payload);
         } else {
-          const {serializedString, errorArray} = await exportStore(store);
+          const {serializedString, errorArray} = await exportStore(
+            store.getState(),
+          );
           errorArray.forEach(console.error);
           outputAndExit(serializedString);
         }
@@ -254,7 +256,7 @@ async function startFlipper(userArguments: UserArguments) {
               errorAndExit(e);
             });
         } else {
-          exportStore(store)
+          exportStore(store.getState())
             .then(({serializedString}) => {
               outputAndExit(serializedString);
             })