Store the transaction ID locally, too.

src/Main.elm

@@ -185,7 +185,9 @@ updateLoginResponse model a r = case r of
     Ok lr -> ( { model | token = Just lr.accessToken, loginUsername = lr.userId, apiUrl = a }, Cmd.batch
         [ firstSync model.apiUrl lr.accessToken
         , Nav.pushUrl model.key <| Url.Builder.absolute [] []
-        , setStoreValuePort ("scylla.loginInfo", Json.Encode.string <| encodeLoginInfo (lr.accessToken, model.apiUrl, lr.userId))
+        , setStoreValuePort ("scylla.loginInfo", Json.Encode.string
+            <| encodeLoginInfo 
+            <| LoginInfo lr.accessToken model.apiUrl lr.userId model.transactionId)
         ] )
     Err e  -> (model, Cmd.none)