Add icon to duplicate + split step service in two (#14521)

As title. Created a new step operations service.

Also added Duplicate Icon
<img width="500" height="767" alt="Capture d’écran 2025-09-16 à 09 42
19"
src="https://github.com/user-attachments/assets/4d789639-62f6-4fea-afb8-396868d7c2cb"
/>

packages/twenty-front/src/modules/workflow/workflow-steps/components/WorkflowActionFooter.tsx

@@ -6,7 +6,9 @@ import { RightDrawerFooter } from '@/ui/layout/right-drawer/components/RightDraw
 import { SelectableList } from '@/ui/layout/selectable-list/components/SelectableList';
 import { useDuplicateStep } from '@/workflow/workflow-steps/hooks/useDuplicateStep';
 import { useTheme } from '@emotion/react';
+import { useLingui } from '@lingui/react/macro';
 import { useId } from 'react';
+import { IconCopyPlus } from 'twenty-ui/display';
 import { Button } from 'twenty-ui/input';
 import { MenuItem } from 'twenty-ui/navigation';
 import { getOsControlSymbol } from 'twenty-ui/utilities';
@@ -19,6 +21,7 @@ export const WorkflowActionFooter = ({
   additionalActions?: React.ReactNode[];
 }) => {
   const dropdownId = useId();
+  const { t } = useLingui();
   const theme = useTheme();
   const { duplicateStep } = useDuplicateStep();
   const { closeDropdown } = useCloseDropdown();
@@ -50,7 +53,8 @@ export const WorkflowActionFooter = ({
                     closeDropdown(dropdownId);
                     duplicateStep({ stepId });
                   }}
-                  text="Duplicate"
+                  text={t`Duplicate node`}
+                  LeftIcon={IconCopyPlus}
                 />
               </SelectableList>
             </DropdownMenuItemsContainer>