fix: Correct className transform in JSON definitions

- Fixed lazy-d3-bar-chart.json className binding to use className instead of data
- Fixed component-tree.json className binding to use className instead of data
- Code review feedback addressed

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

src/components/json-definitions/component-tree.json

@@ -4,7 +4,7 @@
   "bindings": {
     "className": {
       "source": "className",
-      "transform": "data ? `space-y-2 ${data}` : 'space-y-2'"
+      "transform": "className ? `space-y-2 ${className}` : 'space-y-2'"
     }
   },
   "children": [

src/components/json-definitions/lazy-d3-bar-chart.json

@@ -6,7 +6,7 @@
     "height": "height",
     "className": {
       "source": "className",
-      "transform": "data ? `overflow-visible ${data}` : 'overflow-visible'"
+      "transform": "className ? `overflow-visible ${className}` : 'overflow-visible'"
     }
   },
   "children": [