[feature]: Add Keploy (orange) theme to the website

[nehagup]

Is there an existing feature request for this?

• I have searched the existing issues

Summary

Change all vectors and H1 colours to Keploy Orange colour.

Why should this be worked on?

Will add consistency and authenticity to the website.

[littleironical]

Hi Neha, you can assign this task to me

[littleironical]

I've created a pull request #9

[littleironical]

@nehagup you can close this issue now, this feature has been implemented and added to the main code.

[nehagup]

Thanks @littleironical :)