Add Theme Toggle Button (UI Only)

[PriyanshiG-HUB]

Add a Theme Toggle button to the page layout.

Acceptance Criteria:

• Visible toggle (text/icon)
• Positioned near score or top right
• Styled for both themes
• No JS logic yet

[unnati-09m]

Hi I'd like to work on this issue. Could you please assign it to me?

[Talasudeepk]

hey can you assign this issue to me?