Made AQI Calculator responsive

[m3kvt]

Fixes Issue🛠️

Closes #1126

Description👨‍💻

• Made contents fit into the container box.
• Removed the extra white space from the bottom of the page.

Type of change📄

• Bug fix (non-breaking change which fixes an issue)

How this has been tested✅

Tested using inspect element.

Checklist✅

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added demonstration in the form of GIF/video file
• I am an Open Source Contributor

Screenshots/GIF📷

Mobile view:

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[github-actions]

Hey @m3kvt, Welcome to the project CalcDiverse! 🎊
Thanks for your contribution! Your effort makes this project better. Keep it up! 🙌
Please wait for the PR to be reviewed. Happy Coding!! ✨

[m3kvt]

Could you also assign me my previous issues that you labelled as standby #1130 #1131 #1136 ?

[github-actions]

Congrats, Your pull request has been successfully merged 🥳🎉 Thank you for your contribution to my project 🚀 Keep Contributing!! ✨ @m3kvt