Add custom template save feature

[deepikamishra25]

##Description

Added custom template management functionality for video export settings.

Changes made:

Added ability to save current editor settings as reusable templates.
Added template listing UI in the Templates section.
Added Apply Template functionality to instantly load saved settings.
Added Rename Template functionality.
Added Delete Template functionality.
Implemented localStorage persistence for saved templates.
Improved template state handling and refresh behavior.

##closes 1541

Type of Contribution

• Bug fix
• New feature
• Documentation update
• Refactor
• GSSoC contribution

Participant Info

• GitHub username: https://github.com/deepikamishra25
• Contribution level (Beginner/Intermediate/Advanced): Beginner

Screen Recording

Recording / Loom link: ## Checklist

• I have read the contribution guidelines
• My changes follow the project structure
• I have tested my changes in Chrome, Firefox, and Safari
• bun run lint passes (no ESLint errors)
• bunx tsc --noEmit passes (no TypeScript errors)
• New interactive elements have aria-label / accessible names
• No console.log statements left in
• This PR is related to a valid issue
• Screen recording attached above (required for UI/feature/design changes)

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[github-actions]

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📖 CONTRIBUTING.md

[github-actions]

👋 Thanks for your PR, @deepikamishra25!

Welcome to Reframe — a browser-based video editor built for everyone 🎬

🟠 GSSoC'26 PR detected — thanks for contributing under GirlScript Summer of Code 2026!

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Useful links

• 📖 CONTRIBUTING.md
• 🐛 Open Issues
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Happy coding! 🎉

[Ashvin-KS]

Nice work on the custom template feature! A few issues I spotted:

1. Critical: page.tsx has content added after the export default — this will cause a syntax error. The new

   block should be inside the existing component.

2. The �ny type is used extensively in CustomTemplateManager.tsx and emplateStorage.tsx — consider defining proper interfaces for the template data.

3. No error handling for localStorage operations — if storage is full or disabled, the app will crash.

4. The @testing-library/react version bump from 14 to 16 is a major version change — make sure tests still pass.

Good feature overall, but the page.tsx issue needs to be fixed before merge.

[deepikamishra25]

Hi @magic-peach , just following up on this PR as it’s been pending for a few days. Whenever you’re available to review, I’d really appreciate your feedback. Thanks in advance for your time!