[BUG] Improve empty space utilization below the upload box

[Rucha0901]

Bug description
There is a large unused empty space below the upload box in the main layout. This makes the UI look incomplete and visually unbalanced. The empty section should be better utilized to improve the overall appearance and user experience.

---

Steps to reproduce
Steps to reproduce the behavior:

1. Run the project locally
2. Open the application in the browser
3. Navigate to the main upload section
4. Observe the large empty space below the upload box

---

Expected behavior
The space below the upload box should be properly utilized with improved layout spacing, responsive design adjustments, or additional UI content so the interface looks balanced and visually appealing.

---

Actual behavior
A large blank area appears below the upload box, making the page look empty and unfinished.

---

Browser and OS info

• OS: Windows 11
• Browser: Brave
• Version: Latest

---

Video format (if relevant)

• Input video format: N/A
• Export preset used: N/A
• File size: N/A

---

[github-actions]

👋 Thanks for opening an issue, @Rucha0901!

Our maintainers will review this shortly 🚀

Before you start working

• 📖 Read the CONTRIBUTING.md guide
• 💬 Wait for a maintainer to assign you the issue before starting work
• 🔍 Search for existing issues to avoid duplicates

For GSSoC'26 contributors

If you're contributing under GirlScript Summer of Code 2026, please mention it in your comment when requesting assignment:

"I'd like to work on this — contributing under GSSoC'26"

Architecture notes

Reframe is a static Next.js app with output: "export". Key points:

• All video processing uses FFmpeg.wasm (client-side, no server)
• headers() in next.config.ts won't work — use vercel.json instead
• not-found.tsx requires public/404.html + vercel.json routes config

Happy contributing! ⭐ Star the repo if you find it useful!

[Rucha0901]

@magic-peach ,assign this issue to me for gssoc'26.
Thank You!

[Rucha0901]

/assign

[github-actions]

Hey @Rucha0901, you already have 5 issues assigned to you. Please complete or unassign one before picking up more. 🙏

[matheusmurkdock]

I'd like to work on this — contributing under GSSoC'26
/assign

[github-actions]

Hey @matheusmurkdock, this issue has been assigned to you! 🎉 Please make progress within 5 days or it will be automatically unassigned due to inactivity.