feat: update formatter configurations for JavaScript and JSON files

- Set `bracketSpacing` and `indentWidth` for JavaScript formatter.
- Defined `indentWidth` for JSON formatter.

Author: atldays

biome.json

@@ -19,13 +19,16 @@
   },
   "javascript": {
     "formatter": {
+      "bracketSpacing": false,
+      "indentWidth": 4,
       "quoteStyle": "double",
       "semicolons": "always",
       "trailingCommas": "all"
     }
   },
   "json": {
     "formatter": {
+      "indentWidth": 2,
       "trailingCommas": "none"
     }
   }