accessibility improvements

- [x] I have read through the manual page (`man fzf`)
- [x] I have the latest version of fzf
- [x] I have searched through the existing issues

## Info

- OS
- [x] Linux
- [ ] Mac OS X
- [ ] Windows
- [ ] Etc.
- Shell
- [x] bash
- [x] zsh
- [ ] fish

## Problem / Steps to reproduce

I am a blind person so I use a screen reader to work with the terminal. (orca)
in order to announce changes in the terminal, this program monitors the hardware cursor.

at the moment fzf places the hardware cursor on the search bar, and the results are highlighted with the> symbol because of this, when navigating through the search result, they are not read by the screen reader.

this can be solved by adding a command line option that would place the hardware cursor on the> symbol to indicate the highlighted result.

What do you think about this?

Start by reviewing the `man fzf` behavior for a new command-line option and the issue's hardware-cursor requirement. Done means an option places the hardware cursor on the `>` marker for the highlighted result, allowing Orca to announce results while navigating in bash and zsh.

Written by the indexing model from the issue text.