Add loading indicator when connecting to error tracking server
![2019-08-30_09.26.45](data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==)
Although it seems like my browser was able to authenticate fairly quickly with the server, I think we should add a loading indicator when connecting to error tracking server. This would be especially valuable on slow internet connections