Add bulk import URLs functionality to collections #338

[Kamalpannu]

Description: This feature allows users to add multiple YouTube or YTMusic URLs at once to a selected collection by pasting them collectively into a text input. Each URL is processed and added automatically, making it faster to build or update collections.

Key Benefits:

Quickly add multiple media items without repeated manual entry. Supports large-scale additions for playlists or collections. Fully integrated with the current collection system.

Usage:

Navigate to the desired collection. Click the Bulk Import button. Paste multiple URLs into the input box, separated by new lines or spaces. Confirm to add all URLs at once to the selected collection.

Summary by CodeRabbit

• New Features
  • Added bulk import functionality to import multiple YouTube videos at once.
  • New bulk import button in the toolbar opens a dialog for entering multiple URLs.
  • Supports various YouTube URL formats with automatic parsing and validation.
  • Real-time progress tracking and detailed results summary (successful, failed, duplicates).
  • Integrated notifications for import status updates.