Add Dark/Light Mode Toggle to Contact Us Page for Improved User Accessibility

[byteom]

What does this PR do?

This PR adds dark mode functionality to the Contact Us page, enhancing user experience by allowing users to toggle between light and dark themes. The implementation includes new CSS for theme variables and JavaScript for toggling modes and persisting user preference.

Motivation: Improving accessibility and visual comfort for users in different lighting environments.

Dependencies: No additional dependencies were required for this change.

Fixes #974

Type of change

• New Feature: Introduces dark/light mode functionality to the Contact Us page.

• Chore: Refactored existing CSS to support theming with variables.

• Bug fix (non-breaking change which fixes an issue)

• Chore (refactoring code, technical debt, workflow improvements)

• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Screenshots

Mandatory Tasks

• [x] Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

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Name	Status	Preview	Comments	Updated (UTC)
ticket-booking	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 9, 2024 8:48pm