Clean duplicate dependency declarations in package.json

[Abidoyesimze]

Summary

Duplicate @tailwindcss/postcss entries and unusual direct/optional oxide package setup may confuse contributors.

Affected files

• package.json

Tasks

• Remove or justify duplicate dependency entries.
• Ensure install/build still pass.
• Note any platform-specific requirements in README.

Acceptance criteria

• Scope is limited to the files listed (or agreed alternatives in the PR).
• Change is verifiable: tests, screenshots, or written QA steps in the PR.
• No behavior regressions in related user flows.
• No new duplicate abstractions without a one-line rationale in the PR.

Suggested labels

cleanup, maintenance, good first issue

Notes

Standalone cleanup issue from CLEANUP_ISSUES_2026-05.md. Complements the audit queue and product backlog.

[Isihaq123]

@Isihaq123 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

will love to work on this issue,assign me

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Isihaq123 to this issue.

[icentedward76-sketch]

@icentedward76-sketch has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

hello sir i would like to wok on this issue sir

ℹ️ Repo Maintainers: To accept this application, review their application or assign @icentedward76-sketch to this issue.

[drips-wave]

Congratulations, @icentedward76-sketch! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @icentedward76-sketch: 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.

Warning

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[drips-wave]

This issue has been completed by @icentedward76-sketch as part of the Stellar Wave Program's 6th Wave 🥳

😎 @icentedward76-sketch: You earned 200 Points for completing this issue! After the current Wave ends, you'll be eligible for a percentage of the Wave's reward pool based on the percentage of total points you've earned. Learn more here. You can also Leave a review to share your experience working on this issue.

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