v0.55.0

_Release highlights: https://junegunn.github.io/fzf/releases/0.55.0/_

- Added `exact-boundary-match` type to the search syntax. When a search term is single-quoted, fzf will search for the exact occurrences of the string with both ends at word boundaries.
  ```sh
  fzf --query "'here'" << EOF
  come here
  not there
  EOF
  ```
- [bash] Fuzzy path completion is enabled for all commands
    - 1. If the default completion is not already set
    - 2. And if the current bash supports `complete -D` option
    - However, fuzzy completion for some commands can be "dynamically" disabled by the dynamic completion loader
    - See the comment in `__fzf_default_completion` function for more information
- Comments are now allowed in `$FZF_DEFAULT_OPTS` and `$FZF_DEFAULT_OPTS_FILE`
  ```sh
  export FZF_DEFAULT_OPTS='
    # Layout options
    --layout=reverse
    --info=inline-right   # Show info on the right side of the prompt line
    # ...
  '
  ```
- Hyperlinks (OSC 8) are now supported in the preview window and in the main window
  ```sh
  printf '<< \e]8;;http://github.com/junegunn/fzf\e\\Link to \e[32mfz\e[0mf\e]8;;\e\\ >>' | fzf --ansi

  fzf --preview "printf '<< \e]8;;http://github.com/junegunn/fzf\e\\Link to \e[32mfz\e[0mf\e]8;;\e\\ >>'"
  ```
- The default `--ellipsis` is now `··` instead of `..`.
- [vim] A spec can have `exit` callback that is called with the exit status of fzf
    - This can be used to clean up temporary resources or restore the original state when fzf is closed without a selection
- Fixed `--tmux bottom` when the status line is not at the bottom
- Fixed extra scroll offset in multi-line mode (`--read0` or `--wrap`)
- Added fallback `ps` command for `kill` completion on Cygwin