[Feature]: Add PWA support to the app

[TROCK3338]

Where are you from?

Mention the event you are from.

[ ] GSSoc

[ ✔️] OSCI

Description of the Feature

Update the app configuration (manifest + meta tags) to make it a proper Progressive Web App (PWA) so users can install it on their devices (and get offline functionality too)

Estimated time to implement the feature

2 days at max

Additional context

This would improve the functionality and overall usage for team and individuals both.

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊

[TROCK3338]

Please assign this issue to me.

[DeadIndian]

@TROCK3338 assigned