1750 extensibility twenty sdk v2 use twenty sdk to define an object (#15230)

We maintain jsonc object definition but will deprecate them pretty soon

## Before
<img width="1512" height="575" alt="image"
src="https://github.com/user-attachments/assets/d2fa6ca4-c456-4aa9-a1e3-845b61839718"
/>

## After
<img width="1260" height="555" alt="image"
src="https://github.com/user-attachments/assets/ba72f4cf-d443-4967-913c-029bc71f3f48"
/>

tsconfig.base.json

@@ -13,7 +13,7 @@
     "lib": ["es2020", "dom"],
     "skipLibCheck": true,
     "skipDefaultLibCheck": true,
-    "resolveJsonModule": true,
+    "resolveJsonModule": true
   },
   "exclude": ["node_modules", "tmp"]
 }