Was causing an error in the app.

A method is better in terms of dev ex here.

Also changes the namespace separator key from ":" to "|" to avoid
parsing issues from i18next.

We now use prettier to format the coding style. This patch is the result
of running it (from the `npm run format` convenience command) and we do
these many changes now so that, from now on, the PRs will carry only
their respective changes and be automatically formatted.

Whenever there is a network issue or a user is not authorized we want to
show  an alert notification.

Thus this patch adds the AlertNotification component and uses it in the
app.