dv v0.5.1

Added

• gf on a name in a comment (torn_prefix_file, or anything in code) goes to where it's
  defined: found by a grep for fn name, class name and the like, the diff's files first; a
  picker when there are several.
• Ctrl-w p: the pending view, as the Claude view for your pending review: its text so far and
  the comments in it, each with a few lines of code around it.
• In the Claude view (and the pending one), + / - show more or less code around a comment,
  and Z the whole file.

Changed

• dv list keeps your marks (m) when you quit it, so you can go through marked PRs a few at
  a time; marks on PRs that have closed go.