MIgration from RRF2 to RRF3 problem commands

[alil2096]

@Phaedrux Yes, the problem was there.

For those reading this, I solved it like this:

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.3.15 on Fri Mar 17 2023 09:18:48 GMT+0100 (Ora standard dell’Europa centrale)
G91							; relative positioning
G1 H1 X-395 F3000			; move quickly to X and stop there (first pass)
G1 H1 Y-345 F3000			; move quickly to Y and stop there (first pass)
G1 X5 F1800					; go back a few mm
G1 Y5 F1800					; go back a few mm
G1 H1 X-395 F360			; move slowly to X and Y axis endstop once more (second pass)
G1 H1 Y-345 F360			; move slowly to X and Y axis endstop once more (second pass)
;G92 X0 Y0
G1 H1 Z410 F1800			; move Z up until the endstop is triggered
G92 Z410					; set Z position to axis maximum (you may want to adjust this)
G1 Z-5 F1800				; go back a few mm
G1 H1 Z410 F1800			; move slowly to X and Y axis endstop once more (second pass)
G92 Z410					; set Z position to axis maximum (you may want to adjust this)
G90							; absolute position

The single code are then reported in the single axes home files.