bug#62800: [PATCH] eww: Use completion in URL/keyword prompt.

[Juri Linkov]

> The attached patch adds completion support to the EWW URL prompt (M-x eww).
>    (interactive
>     (let ((uris (eww-suggested-uris)))
> -     (list (read-string (format-prompt "Enter URL or keywords"
> -                                       (and uris (car uris)))
> -                        nil 'eww-prompt-history uris)
> +     (list (completing-read (format-prompt "Enter URL or keywords"
> +                                           (and uris (car uris)))
> +                            eww-prompt-history nil nil nil
> +                            'eww-prompt-history uris)

Emacs 29 has a new command 'minibuffer-complete-history'
that completes on the history.