Fix Navbar Overflow and Update Contact Page Layout

[sheeeuWu]

Description

• Fixed navbar elements overflowing.
• Removed the Contact link from the navbar since it is already available in the footer.
• Removed the Back to Home button from the Contact page for consistency with other pages.
• Added the missing footer to the Contact page.
• Updated the corresponding test files to reflect the UI changes and ensure all tests pass.

Fixes #9021

Pillar

• 🎨 Pillar 1 — New Theme Design
• 📐 Pillar 2 — Geometric SVG Improvement
• 🕐 Pillar 3 — Timezone Logic Optimization
• 🛠️ Other (Bug fix, refactoring, docs)

Visual Preview

Checklist before requesting a review:

• I have read the CONTRIBUTING.md file.
• I have tested these changes locally (localhost:3000/api/streak?user=YOUR_USERNAME).
• I have run npm run format and npm run lint locally and resolved all errors (CI will fail otherwise).
• My commits follow the Conventional Commits format (e.g., feat(themes): ..., fix(calculate): ...).
• I have updated README.md if I added a new theme or URL parameter.
• I have started the repo.
• I have made sure that i have only one commit to merge in this PR.
• The SVG output matches the CommitPulse "premium quality" aesthetic standard (no raw elements, smooth animations, correct fonts).
• (Recommended) I joined the CommitPulse Discord community for contributor discussions, mentorship, and faster PR support.

[vercel]

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[retenta-bot]

This PR resolves navbar overflow issues and enhances the Contact page layout by removing unnecessary elements and adding a footer. It also includes updates to the test files to ensure all changes are covered. This aligns with previous decisions to improve responsive design and test coverage for UI components. Thank you for your contributions!

[github-actions]

📦 Next.js Bundle Size Report (Gzipped Sizes)

Asset	PR Size	Base Size	Difference	Status
static/chunks/app/contact/page-[hash].js	5.63 KB	5.38 KB	+0.25 KB (+4.66%)	🔴 Regression
static/chunks/app/layout-[hash].js	16.34 KB	16.37 KB	-0.03 KB (-0.18%)	🟢 Improvement

📊 Summary of Totals

Category	PR Size	Base Size	Difference
Total JS	5008.33 KB	5004.32 KB	+4.01 KB (+0.08%)
Total CSS	354.87 KB	354.80 KB	+0.07 KB (+0.02%)