Limit nodes opened by default in the JSON Tree component (#11002)

- Add a parameter to choose which nodes to open by default
- On the Admin Panel, open all nodes by default
- On the Workflow Run step output, open only the two first depths
- On the Workflow Run step input, open only the previous step first
depth
- Display `[empty string]` when a node is an empty string
- Now, display `null` instead of `[null]`

## Demo


https://github.com/user-attachments/assets/99b3078a-da3c-4330-b0ff-ddb2e360d933

Closes https://github.com/twentyhq/core-team-issues/issues/538

packages/twenty-ui/src/json-visualizer/contexts/JsonTreeContext.tsx

@@ -1,7 +1,13 @@
 import { createContext } from 'react';
 
+export type ShouldExpandNodeInitiallyProps = { keyPath: string; depth: number };
+
 export type JsonTreeContextType = {
   shouldHighlightNode?: (keyPath: string) => boolean;
+  shouldExpandNodeInitially: (
+    params: ShouldExpandNodeInitiallyProps,
+  ) => boolean;
+  emptyStringLabel: string;
   emptyArrayLabel: string;
   emptyObjectLabel: string;
   arrowButtonCollapsedLabel: string;