Issue:Improve visibility and placement of dark/light mode toggle.

[Sashang-debug]

Screenshots:

Problem:

The dark/light mode toggle is currently placed in the footer and is difficult to notice, especially in light mode due to low contrast.
This makes the theme switch feature hard to discover for users.

Why this matters:

• Theme toggles are commonly expected to be easily accessible.
• Low contrast may affect accessibility.
• Users may not realize the site supports theme switching specially in light mode.

Suggested improvements:

• Improve contrast/visibility of the toggle in light mode.
• Consider placing it in a more prominent location (e.g. header or floating button).
• Ensure accessibility best practices are followed.

I’d be happy to work on this if the maintainers agree.

[safiya2610]

I would like to work on this, please assign this to me.
@Sashang-debug