- show extra travel acceleration settings in 'Machine limits' page in Printer Settings
when the new firmware flavor is selected
- updated tooltips on the config values (they were basically wrong even in the current version)
- 'Marlin (legacy)' firmware flavor behaviour should not change: it exports M204 Pa Rb Ta
(where a, b are the values from machine limits) at the beginning of gcode and it uses
M204 S... for feature type dependent acceleration settings (legacy variant of M204 P.. T..)
- new Marlin Firmware exports M204 Pa Rb Tc (where a,b,c are the values from machine limits).
Feature type dependent acceleration is set using M204 P..., not overriding the travel acceleration.