Newpipe: Big playlists only loading first 100 videos

[mjsir911]

Checklist

• [x] I am using the latest version - 0.20.2
• [x] I checked, but didn't find any duplicates (open OR closed) of this issue in the repo.
• [x] I have read the contribution guidelines given at https://github.com/TeamNewPipe/NewPipe/blob/HEAD/.github/CONTRIBUTING.md.
• [x] This issue contains only one bug. I will open one issue for every bug report I want to file.

Steps to reproduce the bug

1. Go to https://www.youtube.com/playlist?list=PLABS9rhwbrHkrsit9lgHhx7MyqjJvj34C&list=UL
2. Scroll down

Actual behaviour

Last selectable video is 'How About a Song? "An Unwavering Heart" - Pokemon X & Y"

Same behavior if enqueued on background

Expected behavior

Expected to load 100 more videos, which is a bit inconvenient on a 3000 video playlist to get to the bottom but is sane behaviour

[mhmdanas]

Duplicate of #4819.