In-progress browser for a directory of text files

this seems to pass all manual tests

It's an interesting blend with my old solution; the new solution acts as just a safety net.

It makes a couple of situations more jarring, where the screen moves more than strictly necessary. But the core vibe of my apps is preserved: the screen only updates when you do something.

Created by  Kartik K. Agaram  on October 27, 2023
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