fix: prevent large playlist handler from interfering with YouTube queue autoplay (Fixes #4228)

[waterWang]

Fixes #4228

Problem

When the extension is enabled, YouTube keeps adding random videos to the queue when reaching the end of a queue. Disabling the extension makes the problem go away.

Root Cause

The playlistLargePlaylistHandler was being initialized for all URLs with a list parameter, including queue-type playlists (Watch Later WL, Radio RD, auto-generated mixes). The handler's index-sync logic interferes with YouTube's queue autoplay behavior, causing YouTube to add videos to the queue.

Fix

• Skip queue-type playlists (WL, RD, RDAMVM..., OLAK5uy_...) in playlistLargePlaylistHandler
• Skip queue-type playlists when initializing the handler in initPlayer
• Queue-type playlists are not regular user playlists and don't need the large playlist index-sync logic

Changes

• js&css/web-accessible/www.youtube.com/playlist.js: Added queue-type check in playlistLargePlaylistHandler
• js&css/web-accessible/functions.js: Added queue-type check in initPlayer playlist initialization