fix(protocol-designer): populate blowout flow rate for no liquid class (#19048)

For both OT-2 and Flex moveLiquid forms with no liquid class selected,
we should populate the default blowout flow rate, even though the
blowout/disposal checkbox begins unchecked. For OT-2, we use the
pipette's liquid specs default blowout flow rate. For Flex, we use the
reference liquid class's (water) blowout flow rate if it exists. We
fallback to the pipette's liquid specs default flow rate for Flex.

Closes RQA-4453

Author: ncdiehl11

protocol-designer/src/steplist/formLevel/handleFormChange/utils.ts

@@ -630,6 +630,8 @@ const getNoLiquidClassValuesMoveLiquid = (args: {
       dispense_retract_mmFromBottom: SAFE_MOVE_TO_WELL_OFFSET_FROM_TOP_MM,
       dispense_retract_delay_seconds:
         allOT2Defaults.dispense_retract_delay_seconds,
+      blowout_flowRate:
+        matchingTipLiquidSpecs?.defaultBlowOutFlowRate.default ?? null,
       ...dipsosalFields,
     }
     return {
@@ -799,6 +801,10 @@ const getNoLiquidClassValuesMoveLiquid = (args: {
     dispense_touchTip_mmFromTop: dispense.retract.touchTip.params?.zOffset,
     dispense_retract_delay_seconds: 0,
     dispense_submerge_delay_seconds: 0,
+    blowout_flowRate:
+      dispense.retract.blowout.params?.flowRate ??
+      matchingTipLiquidSpecs?.defaultBlowOutFlowRate.default ??
+      null,
   }
   return {
     ...getDefaultsForStepType(stepType),