Recreate package-lock & sort package.json

[Saibamen]

1. Recreate package-lock.json by deleting this file and node_modules folder and running npm install again
2. Run npx sort-package-json

[Arsenicro]

The bad news is that it seems to be breaking our app: I see multiple errors when running it (Element type is invalid and process is not defined and so on).

The good news is that I think I know why: in the index.js file, we are using ReactNotification from the react-notifications-component, which weirdly does not exists (maybe it existed in previous versions). Instead, we should use named ReactNotifications.

Also, it seems like running npm install still changes package-lock a bit