chore: add BunnyStream and improve various helpers

Add BunnyStream support (enum, site entries, and lightweight helper) and register it in available helpers for ext and node. Improve multiple site helpers and utilities: simplify Dailymotion ID parsing, relax Olympics/Peertube path regexes, handle Weibo login-wrapped URLs and layer IDs, and normalize Vimeo public URLs with better fallbacks. Major refactor of Udemy helper: broaden data parsing (view_html, outputs, stream_url/external_url, asset outputs), unify candidate collection, de-duplicate and rank by quality, better HLS/DASH detection, and improved caption locale resolution and course/lecture id extraction. Move/simplify VK URL builder usage in extension videoData and tidy related imports/exports across packages.

docs: updated

chore: bump depends

chore: bump version

chore: bump version

release 2.4.8