[BUG] "About" page maintains a separate theme context from the rest of the site

[UjjwalTomar0808]

Describe the bug
The website appears to have two independent theme states: one for the "About" page and another one that is shared among all other pages. Changing the theme on a regular page (like the homepage or FAQ) does not affect the theme on the "About" page, and vice-versa. This creates a disjointed experience where the user must set their preferred theme in two different places to have a consistent look across the site.

To Reproduce
Steps to reproduce the behavior:

1. Go to the main page or FAQ page. Let's assume it starts in Light Mode.
2. Click the theme toggle to switch this page to Dark Mode.
3. Now, navigate to the 'About' page. Observe that it is still in Light Mode, as it has its own separate theme context.
4. While on the 'About' page, click its theme toggle to switch it to Dark Mode.
5. Navigate back to the FAQ page. It will still be in Dark Mode (from Step 2), unaffected by the change you just made on the 'About' page.
6. This confirms that the two sections of the site have independent theme controls.

Video:

REC-20250921165516.mp4

Additional Note:
I would like to work on this issue. Please assign it to me so I can fix it

[github-actions]

Thank you for raising this issue!

We'll review it as soon as possible. We truly appreciate your contributions! ✨

Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊

[supriya46788]

@UjjwalTomar0808 assigned