Migrate update step changes to diff (#14663)

This PR should fix optimistic rendering issues on step updates:
- compute a diff for trigger and steps on mutations
- build an util that applies that diff (built a more robust version from
https://github.com/AsyncBanana/micropatch)
- apply diff in cache

packages/twenty-front/src/modules/workflow/utils/getStepDefinitionOrThrow.ts

@@ -37,7 +37,7 @@ export const getStepDefinitionOrThrow = ({
 
   const selectedNodePosition = findStepPosition({
     steps,
-    stepId: stepId,
+    stepId,
   });
   if (!isDefined(selectedNodePosition)) {
     return undefined;