In-progress browser for a directory of text files

detach snapshot_viewport from Global_viewport.{w,h}

Now it no longer cares about those dimensions.

Created by  akkartik  on April 16, 2025
VCMXADALFRE2Y6S2DBMD6J6AKFDE6RD2JXLITW2R47ZKFLQFJ3ZQC
Change contents