changing some labeling for the task settings in harvest plans for the costs

src/harvestPlan/HarvestSettings.tsx

@@ -714,7 +714,7 @@ export default function HarvestSettings(props: Props) {
       <TaskSettings
         task={taskToEdit}
         hasCost
-        costTitle="Material Cost(acres)"
+        costTitle="Material Cost(acre)"
         secondaryCostTitle="Equipment Cost(acre)"
         objectKey={planKey}
         type={type}