v0.8.1

Changed

• Manpages: moved to man/man1/*.1.
• Replace --no-aliases with --no-cmd.
• Elvish: upgrade minimum supported version to v0.18.0.
• Nushell: upgrade minimum supported version to v0.61.0.

Fixed

• Bash/Zsh: rename _z completion function to avoid conflicts with other shell
  plugins.
• Fzf: added --keep-right option by default, upgrade minimum supported version
  to v0.21.0.
• Bash: only enable completions on 4.4+.
• Fzf: bypass ls alias in preview window.
• Retain ownership of database file.
• zoxide query --interactive should not conflict with --score.