Make the workflow's visualizer layout more stable (#9203)

We no longer reset the state of Reactflow when the selected workflow
version changes. The viewport is not reset when discarding a draft
version but it looks better that way.


https://github.com/user-attachments/assets/0df9fa52-c44a-4aea-a504-4765542101fa

Fixes
https://discord.com/channels/1130383047699738754/1319626151768883300/1319626151768883300

packages/twenty-front/src/modules/workflow/components/WorkflowDiagramCanvasEditable.tsx

@@ -17,7 +17,6 @@ export const WorkflowDiagramCanvasEditable = ({
   return (
     <ReactFlowProvider>
       <WorkflowDiagramCanvasBase
-        key={workflowWithCurrentVersion.currentVersion.id}
         diagram={diagram}
         status={workflowWithCurrentVersion.currentVersion.status}
         nodeTypes={{

packages/twenty-front/src/modules/workflow/components/WorkflowDiagramCanvasReadonly.tsx

@@ -16,7 +16,6 @@ export const WorkflowDiagramCanvasReadonly = ({
   return (
     <ReactFlowProvider>
       <WorkflowDiagramCanvasBase
-        key={workflowVersion.id}
         diagram={diagram}
         status={workflowVersion.status}
         nodeTypes={{