update chicken weight to have chicken_area data as well

backend/database/ERD_dashboard.json

@@ -1290,6 +1290,22 @@
           "parent": "PF_pHT-a65sNfpEKlwq7-159",
           "label": "average_daily_gain float NOT NULL"
         },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-66"
+        },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area-col1",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-cw-area"
+        },
+        {
+          "id": "PF_pHT-a65sNfpEKlwq7-cw-area-col2",
+          "type": "node",
+          "parent": "PF_pHT-a65sNfpEKlwq7-cw-area",
+          "label": "chicken_area float NOT NULL"
+        },
         {
           "id": "PF_pHT-a65sNfpEKlwq7-321",
           "type": "node",
@@ -2537,4 +2553,4 @@
       ]
     }
   ]
-}
+}