fix(ui): responsive layout for joinCommunity component in smaller screens

[Prakash1185]

⚠️   Pre Checklist

Please complete ALL items in this checklist, and remove before submitting

• I have npm run build and npm run serve locally before submitting this PR
• I have read through the Contributing Documentation

Summary

Problem

• The Join Community component was not responsive on smaller screens and the image was overflowing from the container.

What Changes

• Fixed the component with tailwind css classes and made it responsive for smaller screens.

Screenshots

Before

After

[Prakash1185]

Hi @abeizn,

This PR addresses the responsive layout of the Join Community component on smaller screens.
Please look into this.

[klesh]

Thanks for your contribution.