Fixed dark mode inconsistency issue throughout website

[Sourabh782]

KINDLY MERGE #597 ( ALREADY REVIEWED ) BEFORE THIS PR AS THIS CONTAINS CHANGES MADE IN THAT PR ALSO.

Description

A clear and concise description of what the PR does.

• This PR does the following:

  • Fixes : The dark mode inconsistency issue throughout the website

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 #561

Changes

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• Refactored the ... code to properly implement dark mode

Testing Instructions

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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)

some page changes:

1. contact us: before:

   after:

2. terms and condition: before:

   after:

3. privacy page: before:

   after:

4. other pages:

   

   

   

   

   

Additional Context

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Checklist

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

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