-Add 2209 as default option instead of forcing the choice for 2208 or 2209
-Update default bed thermistor to the correct b3950 version (per Keenovo documentation)
-Update default "by-id" to have the correct MCU (previously was a stm example)
-Remove V2 references to multi MCUs
-Set extruder to interpolate: true
-Update Chamber Lighting section
-Fix inverted Z direction on one motor
-Add 2209 as default option instead of forcing the choice for 2208 or 2209 -Update default bed thermistor to the correct b3950 version (per Keenovo documentation) -Update default "by-id" to have the correct MCU (previously was a stm example) -Remove V2 references to multi MCUs -Set extruder to interpolate: true -Update Chamber Lighting section -Fix inverted Z direction on one motor