theme toggler simplified

[CodeTorso]

PR Fixes:

• 1 There is only one file change, I have improved the toggler to change theme without asking you through a dropdown

Checklist before requesting a review

• [X] I have performed a self-review of my code
• [X] I assure there is no similar/duplicate pull request regarding same issue

Here is the video representation:

Screencast from 30-04-24 03:57:16 PM IST.webm