Fix Issue #878 Feedback Modal in Dark Mode

[stutxi]

This PR addresses the issue #878 where the emoji text in the feedback modal overlaps in dark mode.

• Fixes the emoji text overlap in the feedback modal in dark mode.
• Ensures that the "Buy Our eBooks" button is also visible in dark mode, placed above the feedback button just like in light mode.

Before:

After:

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[PriyaGhosal]

@stutxi Great contribution ! 🎉
Your pull request has been successfully merged! Also Take a moment to ⭐ Star the repository if you haven't already.