feat: content blocker, extension overhaul, SponsorBlock, ATC, tab organizer, settings redesign#334

l984-451 wants to merge 2 commits intonook-browser:devnook-browser/Nook:devfrom

l984-451:upstream-pr/core-fixes-perfl984-451/Nook:upstream-pr/core-fixes-perfCopy head branch name to clipboard