Hover on btn darkmode

[rohan-kulkarni-25]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes #330

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Explain the Testing instructions

Test Configuration:

• Operating system:
• Version:
• Text-editors used:

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules

  ATTACH SCREEN-SHOTS

[rohan-kulkarni-25]

@himanshu007-creator Please have a look on this

[github-actions[bot]]

Thank you @rohank2502 for the PR. Our mentors will review it soon. This issue counts towards the GSSOC'21