Added Dark/Light Theme Feature

[arbazalam01]

Issue Number

ISSUE #4

Describe the changes you've made

Describe if there is any unusual behaviour of your code(Write NA if there isn't)

Additional context (OPTIONAL)

Test plan (OPTIONAL)

Checklist

• [x] My code follows the code style of this project.
• [x] I have performed a self-review of my own code.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have commented my code, particularly in hard-to-understand areas.
• [x] My changes generate no new warnings.
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [x] The title of my pull request is a short description of the requested changes.

[kavania2002]

I like it... it's very nice.....

[kavania2002]

Sorry but I had to reverse the changes. Because the dark/light mode is working till realme. But after that no mobile phones are working in dark/light mode.

[arbazalam01]

I cannot understand can you please tell me the issue on discord.