Fix corrupted UTF-8 emoji and icons in NotificationCenter

[RUKAYAT-CODER]

Overview
src/components/notificationcenter.tsx (lines 15-23, 106, 129) stores the TYPE_ICON emoji map, the notification bell glyph, and the dismiss button glyph as corrupted UTF-8, so notification type icons and the close control render as mojibake instead of the intended symbols. Replace the corrupted literals with correct characters or lucide-react icons.

[SamixYasuke]

@SamixYasuke has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I'd like to work on this issue. I'll replace the corrupted UTF-8 emoji and glyphs in NotificationCenter with the correct Unicode characters or equivalent lucide-react icons, ensuring notification type icons and the dismiss control render consistently across browsers and platforms. I'll also add or update any relevant tests, verify there are no encoding regressions, and ensure the changes pass the project's linting and CI checks.

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[lightnoor890]

@lightnoor890 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi maintainer, I'd like to take on this issue.
I specialize in Backend and frontend development with Golang, Next.js and TypeScript. My experience allows me to bridge functionality with intuitive user experiences, ensuring both technical correctness and usability.

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[DevRushd]

@DevRushd has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I would love to fix this issue. Kindly assign it to me.

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[boalambo]

@boalambo has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello maintainer, I would like to work on this issue

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Congratulations, @boalambo! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @boalambo: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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[drips-wave]

This issue has been completed by @boalambo as part of the Stellar Wave Program's 7th Wave 🥳

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