feat: update Radio Settings fixture

fixtures/sample/radiosettings.json

 [
-  {
-    "model": "program.radiosettings",
-    "pk": 1,
-    "fields": {
-      "cba_api_key": "",
-      "cba_domains": [
-        "cba.media"
-      ],
-      "fallback_default_pool": "fallback",
-      "fallback_pools": {
-        "fallback": "Station Fallback Pool"
-      },
-      "fallback_show": null,
-      "host_image_aspect_ratio": "1:1",
-      "host_image_shape": "round",
-      "line_in_channels": {
-        "0": "live",
-        "1": "preprod"
-      },
-      "micro_show": null,
-      "note_image_aspect_ratio": "16:9",
-      "note_image_shape": "rect",
-      "show_image_aspect_ratio": "16:9",
-      "show_image_shape": "rect",
-      "show_logo_aspect_ratio": "1:1",
-      "show_logo_shape": "rect",
-      "station_logo": null,
-      "station_name": "Radio AURA",
-      "station_website": "https://aura.radio"
+    {
+        "model": "program.radiosettings",
+        "pk": 1,
+        "fields": {
+            "cba_api_key": "",
+            "cba_domains": ["cba.media"],
+            "fallback_default_pool": "fallback",
+            "fallback_show": null,
+            "host_image_aspect_ratio": "1:1",
+            "host_image_shape": "round",
+            "line_in_channels": {"0": "live", "1": "preprod"},
+            "micro_show": null,
+            "note_image_aspect_ratio": "16:9",
+            "pools": {"fallback": "Station Fallback Pool"},
+            "note_image_shape": "rect",
+            "show_image_aspect_ratio": "16:9",
+            "show_image_shape": "rect",
+            "show_logo_aspect_ratio": "1:1",
+            "show_logo_shape": "rect",
+            "station_logo": null,
+            "station_name": "Radio AURA",
+            "station_website": "https://aura.radio",
+        },
     }
-  }
 ]