* Adding custom move feedrate for G26
This commit adds an additional configuration parameter that can be used to specify the movement speed during the G26 validation pattern command during moves without extrusion.
ClosesMarlinFirmware/Marlin#20615
* Fixing missing default 'G26_XY_FEEDRATE_MOVE' value
This commit adds a default 'G26_XY_FEEDRATE_MOVE' value (max movement speed / 1.5) in the G26.cpp - same behaviour as the default 'G26_XY_FEEDRATE' value
* Adding comment describing functionality in G26.cpp
* Renaming 'G26_XY_FEEDRATE_MOVE' to 'G26_XY_FEEDRATE_TRAVEL'
Configuration parameter renamed for better readability and consistency
MarlinFirmware/Marlin#20615
* Setting 'G26_XY_FEEDRATE_TRAVEL' to a safer value, aligned comments
Changed default value for 'G26_XY_FEEDRATE_TRAVEL' from 150 mm/s to 100 mm/s for safety purposes, comment alignment
MarlinFirmware/Marlin#20615