Add modal to confirm workflow draft version overriding (#7758)

In this PR:

- Allow the `<ConfirmationModal />` to take additional buttons to
display between the cancel and the confirm buttons.
- Create a modal that's displayed when the user tries wants to use a
workflow version as draft while a draft version already exists. The
displayed modal contains a link to the current draft version and a
button to confirm the overriding of the current draft version.

A demo:


https://github.com/user-attachments/assets/6349f418-1b11-45b3-9f5e-061ca74c2966

Closes twentyhq/private-issues#114

packages/twenty-front/src/modules/workflow/states/openOverrideWorkflowDraftConfirmationModalState.ts

@@ -0,0 +1,7 @@
+import { createState } from 'twenty-ui';
+
+export const openOverrideWorkflowDraftConfirmationModalState =
+  createState<boolean>({
+    key: 'openOverrideWorkflowDraftConfirmationModalState',
+    defaultValue: false,
+  });