Make component styling consistent with Web app

[rossoskull]

I'm submitting a ... (check one with "x")

• bug report
• feature request
• support request => Please do not submit support requests here, instead ask your query in our Gitter channel

Current behavior:
The extension's component styling is inconsistent with the web app.

Expected behavior:
The styling should be changed so that it becomes consistent with the web app. I suggest we can use Materialize CSS framework, which has Material-UI styles.

Would you like to work on the issue?

Yes

[rossoskull]

What are your views about this @akshatnitd @hongquan @Akshat-Jain?

[championpaddler]

@rossoskull I have already made an issue for that.

[rossoskull]

Your issue is regarding alerts, this issue is regarding all other components, like buttons, etc.