Add support for OSC-52 write-only clipboard access
Implements OSC-52 write-only clipboard access. Already supported by a wide range of other terminals, including alacritty, foot, kitty, urxvt, wezterm, xterm, and others.
I've intentionally omitted read access to the clipboard as that comes with several security concerns, which should be discussed first.
Edited by Christian Muehlhaeuser