Replace manual video decrement

[dnicolson]

This refreshes native sidebars after videos are deleted (yt-new-playlist-header for watch later and yt-action for regular playlists). This prevents issues when there is 1 or 0 videos remaining.

[ImprovedTube]

thank you! @dnicolson Tested? Can you (/Should we) keep the previous selector & method as a fallback?

[dnicolson]

It's tested on several Watch later and regular playlists.

I don’t think it’s practical to keep the old method as a fallback. We’d need a way to detect if the sidebar rendering fails due to YouTube changes, and it’s unlikely that would trigger exceptions for unused custom messages.

[ImprovedTube]

hi @dnicolson youtube exists in old and new versions at once. so at doubt we can keep both, new and old CSS selectors.