Display spinner instead of loading.

[plxity]

Actual Behaviour

Whenever you visit https://accounts.susi.ai/settings "Loading" is displayed.

Expected Behaviour

Displaying a spinner will make it look better.

Steps to reproduce it

1. Visit https://accounts.susi.ai/settings and seeing "Loading" displayed on the top right.

Would you like to work on the issue?

Yes, I would like to work on this.

[plxity]

@AakashMallik Hey, Can you help a little with this?

[plxity]

@akshatnitd Sir, Can I use this https://github.com/jamiebuilds/react-loadable to solve this issue?