nano: Update to 8.0

nano: Update to 8.0

For details see:
https://www.nano-editor.org/news.php

"2024 May 1 - GNU nano 8.0 "Grus grus"

    By default ^F is bound to starting a forward search, and ^B to
    starting a backward search, while M-F and M-B repeat the search
    in the corresponding direction. (See the documentation if you
    want the old bindings back.)
    Command-line option --modernbindings (-/) makes ^Q quit, ^X cut,
    ^C copy, ^V paste, ^Z undo, ^Y redo, ^O open a file, ^W write a file,
    ^R replace, ^G find again, ^D find again backwards, ^A set the mark,
    ^T jump to a line, ^P show the position, and ^E execute.
    Above modern bindings are activated also when the name of
    nano's executable (or a symlink to it) starts with the letter "e".
    To open a file at a certain line number, one can now use also
    nano filename:number, besides nano +number filename.
    <Alt+Home> and <Alt+End> put the cursor on the first and last
    row in the viewport, while retaining the horizontal position.
    When the three digits in an #RGB color code are all the same,
    the code is mapped to the xterm grey scale, giving access to
    fourteen levels of grey instead of just four.
    For easier access, M-" is bound to placing/removing an anchor,
    and M-' to jumping to the next anchor.
    Whenever an error occurs, the keystroke buffer is cleared, thus
    stopping the execution of a macro or a string bind.
    The mousewheel scrolls the viewport instead of moving the cursor."

Signed-off-by: Matthias Fischer <matthias.fischer@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>