Rolled from #1537.

Cooking

• enable 8 contexts (saved sessions may no longer be usable, users need to re-create the sessions)
• render file stats (f) in a floating window
• support rendering output of command run as plugin within floating window (prefix >)
• double confirm when removing more than 10 selected files using rm
• auto-complete hovered file name on pressing TAB at the end of prompt input
• fix scroll down arrow indicator not showing when down arrow is pressed with filter
• support PCRE2 compile-in (make O_PCRE2=1), remove PCRE1 support (no longer being developed)
• support jelliz in preview-tui
• history file for native prompt

Up for grabs

• Fix misaligned icons on MacOS Nerd fonts cause misaligned columns in detail mode with names first #1802
• quitcd not working in fish if path contains backslash quitcd not working in fish if path contains backslash #1957
• Add a history file for native prompt (following .selection file)
  • add program option -h
  • load history on startup, save on exit
  • show history with command numbers on ^R at empty native prompt
  • !command should execute the command number from history
• initial window title doesn't get set on foot #1918

Contribution guideline.