Dark theme feature added to Notes App, issue #3

[Karanagarwal12]

Added the dark mode feature as mentioned in issue #3.
Please have a look if it is good or not

[AkhileshJyotishi]

@Karanagarwal12

You resolving all the issues in the same branch.

You should create different branch for different issues.

For each different issue you should do -

git checkout main 

git checkout -b <branch-name>

branch name can be feature-<branch-name> or bug-<branch-name>

depending upon what issue you are tackling

Your work looks fine.Just make a different branch and create another pull request .

Thanks!!