implement edit active workflow and do not allow editing on already completed steps

src/components/ApprovalWorkflows/WorkflowStepSelects.tsx

@@ -6,6 +6,7 @@ interface Props {
     selects: (Option | null | undefined)[];
     placeholder: string;
     onSelectChange: (numberOfSelects: number, index: number, value: Option | null) => void;
+    isCompleted: boolean;
 }
 
 export default function WorkflowStepSelects({
@@ -13,6 +14,7 @@ export default function WorkflowStepSelects({
     selects,
     placeholder,
     onSelectChange,
+    isCompleted,
 }: Props) {
 
     return (
@@ -39,6 +41,7 @@ export default function WorkflowStepSelects({
                             flat
                             isClearable
                             className={classes}
+                            disabled={isCompleted}
                         />
                     </div>
                 );