Added Frequency Calculator

[Maheshwari-Love]

Fixes Issue🛠️

Closes #1288

Description👨‍💻

A Frequency Calculator is designed to compute the frequency of a periodic event or waveform. Frequency is a fundamental concept in physics, particularly in the study of waves, oscillations, and alternating current (AC) circuits. It refers to the number of cycles or oscillations that occur in a unit of time, typically measured in hertz (Hz), where 1 Hz equals one cycle per second.

Type of Change📄

• [x] New feature (non-breaking change which adds functionality)

Checklist✅

• [x] I am an Open Source contributor
• [x] I have performed a self-review of my code
• [x] My code follows the style guidelines of this project

Screenshots/GIF📷

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[Rakesh9100]

Pls add your calculator part in the main index.html file to display it on the website by making the new commits in this same PR @Maheshwari-Love

[Maheshwari-Love]

@Rakesh9100 added the changes please review if any changes

[Rakesh9100]

Style and enhance the UI @Maheshwari-Love

[Rakesh9100]

Are you working @Maheshwari-Love

[Maheshwari-Love]

Are you working @Maheshwari-Love

Yes of course, till tomorrow I wil commit...

[Maheshwari-Love]

@Rakesh9100 enhanced the UI

Style and enhance the UI @Maheshwari-Love

Enhanced the UI and Styles

[github-actions[bot]]

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