G53 doesn't recognized by the UI

[siganberg]

If you have an offset set up and you send a G53 G-code (machine coordinates), the UI still measures it from the offset instead of from the homing coordinates. This makes your G-code appear invalid, and the UI displays it rendered outside the designated zone.

How to reproduce:

1. Go to settings, and in the "Program End" section, add the following (this is my park zone after cutting is completed) and save:

Copy code
G53 G0 G90 Z0
G53 G0 G90 X0 Y810

2. Home your machine.
3. After homing, move your X, Y, and Z axes to some points; a point close to the center is a good testing location.
4. Load a small program.

From here, you will notice that your Y limit is exceeded, and the UI rendering is off the zone, which should not happen since we are using G53.

Although the UI appears incorrect, you should still be able to run the program.