Fix the dark mode and focus change

[kaal-coder]

These are present in the code but not in a proper way, hence aren't visible on the website.
Fix this issue.

[DevDK12]

I would like to work on this

[DevDK12]

I have already fixed this problem , you can assign me this

[DevDK12]

And also tell me what do you mean by focus change here . Could you explain it in detail more

[kaal-coder]

@DevDK12 On focus change, the title changes to - "Don't give up champ !"

[kaal-coder]

Nope. If tab is changed to any other tab, then the title changes. Refer - Stack Overflow

[kaal-coder]

@DevDK12 make a PR if you have done.
Make sure your branch is updated

[DevDK12]

@DevDK12 make a PR if you have done. Make sure your branch is updated

I have already made a PR request yesterday only and while commiting it was already updated. You should atleast review it

[kaal-coder]

@DevDK12 Check the reason why your PR was closed - #19 (comment)

[Pratik-k-sahoo]

I have solved the issue please can you assign me this issue?

[Pratik-k-sahoo]

Added the dark and light mode with icon change.
Also added the focus change i.e when changes tab then document title changes and alert and notification saying "Don't Give Up Champ".

[Pratik-k-sahoo]

the dark and light mode was assigned to me with the focus change. As @ankit071105 have done the dark mode part thats why in mine its showing conflict. what to do?
Any suggestion? @kaal-coder as it was assign to me.
for till now I am not doing the dark mode part apart from that I have done the focus change part. So please review and merge with the hacktoberfest tag.