1. Update A1 machine gcode.Add multiple layers head wrapping detection.
Avoid the issue of excessive load angle in G28 X.
2. Correct some spelling errors in A1 and A1 mini machine gcode
jira:[NEW]
Signed-off-by: XunZhangBambu <xun.zhang@bambulab.com>
Change-Id: Ia830d45842ed7797c89babd3f05c00abc5db0c4c