Apply an intentional arbitrary sorting to the test categories.

This allows us to easily test that the categories are returned using
alphabetical sorting.

Author: pfrenssen

resources/fixtures/default-categories.json

@@ -1,13 +1,13 @@
 {
+    "Utilities": [
+        "Internet",
+        "Electricity",
+        "Water"
+    ],
     "Food": {
         "Alcohol": [
             "Rakia"
         ],
         "Groceries": []
-    },
-    "Utilities": [
-        "Internet",
-        "Electricity",
-        "Water"
-    ]
+    }
 }