Changes in Height converter

[newbie2508]

🛠️ Fixes Issue #486

👨‍💻 Changes proposed

I changed the UI of project and even added inches option

✔️ Check List (Check all the applicable boxes)

• [x] My code follows the code style of this project.
• [x] This PR does not contain plagiarized content.
• [x] The title of my pull request is a short description of the requested changes.

[narayan954]

Thanks for you contribution :)