Added eslint-plugin-json as dev dependency

Author: adamlui

eslint.config.mjs

@@ -1,4 +1,5 @@
 import js from '@eslint/js';
+import json from 'eslint-plugin-json';
 
 export default [
     js.configs.recommended,
@@ -16,5 +17,6 @@ export default [
         },
         languageOptions: { ecmaVersion: 2022, sourceType: 'script', globals: { chrome: 'readonly' }}
     },
-    { files: ['**/*.mjs'], languageOptions: { sourceType: 'module' }}
+    { files: ['**/*.mjs'], languageOptions: { sourceType: 'module' }},
+    { files: ['**/*.json'], ...json.configs['recommended'] }
 ];

package-lock.json

@@ -1,6 +1,7 @@
 {
   "devDependencies": {
-    "eslint": "^9.12.0"
+    "eslint": "^9.12.0",
+    "eslint-plugin-json": "^4.0.1"
   },
   "scripts": {
     "lint": "eslint . --cache",