Clean up biome.json

Author: jbampton

biome.json

@@ -1,7 +1,7 @@
 {
-  "$schema": "https://biomejs.dev/schemas/2.3.13/schema.json",
+  "$schema": "https://biomejs.dev/schemas/2.3.14/schema.json",
   "files": {
-    "includes": ["**/*.css", "**/*.json", "**/*.njk"]
+    "includes": ["**/*.json", "**/*.njk"]
   },
   "linter": {
     "enabled": true,