Add Export/Import buttons history to TXT. Fix back-navigation not collapsed. Redesigned skipped+seen combo button. Enhanced title. External links: do not mark seen on open. | AO3 Standalone: Light/Dark site-skin button.
I did some further testing and discovered that JSON files do not show up in 'recent' on mobile. This makes picking a backup harder, so I switched my scripts back to exporting TXT. Thank you!
Excellent implementations! The only thing is that the export option downloaded a ".json" file instead of a ".txt one" for me. I don't know if it is by design, so I wanted to point it out.