Plugin sends G10 L2 P1 even if probe was initiated by other process

[kolontsov]

The gcode-grbl.ts code sends G10 L2 P1 after every successful probe, even if probe was initiated outside of cncjs-pendant-gamepad -- for example, in cncjs web interface; and since cncjs also sends G10 L20 Pn and G0 Z.. after probe is done, adding another G10 L2 P1 (and a retract) makes Z value incorrect.

cncjs-pendant-gamepad/src/gcode-grbl.ts

Lines 27 to 36 in 0b71822

	this.connector.subscribeMessage('serialport:read', (data:string) => {
	if (this.zProbeRecord.isValidString(data)) {
	this.zProbeRecord.updateFromString(data);
	if (this.zProbeRecord.success) {
	// The actual Z position is the detected position, but additionally
	// the thickness of the plate. This assumes Z is negative, and makes
	// it more so. This works for me; is this a safe assumption?
	const dz = this.zProbeRecord.z - Number(this.options.zProbeThickness);
	this.sendMessage('command', 'gcode', 'G91'); // relative coordinates
	this.sendMessage('command', 'gcode', `G10 L2 P1 Z${dz}`); // set the offset

And many thanks for plugin, it works excellent with PS3-like controller!