Adds an emergency stop button to the sidebar.

Adds a nice big emergency stop button that (by default) sends M112 to the printer in the case of an emergency. If your printer uses a different E-Stop command, there’s a settings page entry to allow changing the command sent.

Please do be aware that this button is no substitute for human interaction in the case of a real emergency. How your printer responds to M112 depends entirely on its firmware.

Please see the README or the FAQ for more details on how to move the plugin to the top of the sidebar.