Improve best practices lighthouse score for the app.

[Roshanjossey]

🐞 Problem

Best Practices score of this app on lighthouse is 83 now. It would be good to make it better.

🎯 Goal

More users can use this app.

💡 Possible solutions

Make necessary changes to improve best practices score.

📋 Steps to solve the problem

Comment below about what you've started working on.
Run lighthouse from your developer console to see the metrics and possible solutions.
Add, commit, push your changes.
Submit a pull request and add this in comments - Addresses #
Ask for a review in comments section of pull request.
Celebrate your contribution to this project. 🎉

[it-me-joda]

Two main areas to fix this:

• There are a lot of errors from stale references to images. I think we need a data cleanup.
• This and performance are affected by images that are either way too big or way too small. We could create a step to scale images before deployment but it'll be a decent lift.