Prevent subsequent subscription requests if captcha, Prevent retry dialog in some captcha situations, prevent dup captchas

Plugin disable only after no ongoing v8 calls to reduce crashes, errors of placeholder loaders now visible, cancel retry on home now removes loader

Permanently stop playlist video download on cancel, Use detailed video download overlay in overviews

New auto-backup storage using the Storage Access Framework, minor dialog tweaks, minor settings ui tweaks

Cleaning up some logs, reducing retry intervals, planned live stream auto refresh, tweak some buffer timings, fixing some scopes

Properly check for different author and show it as a warning when the author has changed. Properly show signature warnings when installing a script.

Made playback speed available while watching a live video (makes sense for historical) and we no longer apply default playback speed when playing a live stream.