Applied Dark Mode Option to Entire Website

[Sourabh782]

Description

A clear and concise description of what the PR does.

• This PR does the following:
  • Adds ...
  • Fixes ...
  • Updates ... The Entire website to properly implement dark mode option.

Related Issues

Link any related issues using the format Fixes #issue_number.
This helps to automatically close related issues when the PR is merged.

• Placeholder: Fixes [Feature Request]: Properly Implementing the dark mode for whole website #228

Changes

List the detailed changes made in this PR.

• Added a new feature to ...
• Refactored the ... Entire Website to make it Dark-Mode friendly
• Fixed a bug in ...

Testing Instructions

Detailed instructions on how to test the changes. Include any setup needed and specific test cases.

1. Pull this branch.
2. Run npm install to install dependencies.
3. Run npm test to execute the test suite.
4. Verify that ...

Screenshots (if applicable)

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Additional Context

Any additional context or information that reviewers should be aware of.

• This PR is based on the following... I have enables Dark mode across Entire Website. now Entire Website is DarkMode - enabled that means we can easily switch between light and dark mode.

Checklist

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• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I am working on this issue under GSSOC

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