Feat/upload preferences and bulk upload

Description:

This PR combines two feature developments:

1. User Upload Preferences (Part 1)
   • Added functionality to remember user upload preferences such as:
     • Language
     • Release Rights
   • Preferences are stored in localStorage.
   • These values are auto-filled during future uploads to improve user experience.
   • Title and Description are intentionally excluded and must be entered each time.
2. Bulk Upload Feature (Part 2)
   • Added support for uploading up to 5 files at once.
   • Each file requires its own Title and Description.
   • Uploads are processed sequentially.
   • Bulk uploads do not redirect until all files are processed.

Both features were merged carefully and tested to ensure:

• No duplicate state declarations
• No duplicate useEffect hooks
• No TypeScript errors
• No console errors

This enhances user experience and productivity during uploads.

Contributors:

• Laxman Reddy
• Swarna Rathna

Type of Change:

• Bug Fix
• Feature Development
• Documentation

Testing:

• Tested on desktop
• Tested on mobile
• Tested in different browsers

Screenshots (if applicable):

Added screenshots demonstrating:

• Auto-filled upload preferences

• Bulk upload functionalit

  

Checklist:

• Code follows project style guidelines
• Self-review completed
• No console errors
• TypeScript types are correct