Simplify Theme Toggle Interaction on app.roocode.com

[sanathusk]

Description:
Currently in app.roocode.com, there’s a dedicated toggle button placed next to the moon and sun icons for switching themes. This feels redundant. A cleaner approach would be to use a single icon button that toggles directly between moon (dark mode) and sun (light mode), reducing visual clutter and improving UX.

Current

Proposed

Proposal:

• Replace the toggle + icon combo with one standalone icon button
• Toggle theme directly on icon click