Update to ESLint 9. (#292)

Author: marisarobayo

.prettierrc

@@ -0,0 +1,6 @@
+{
+  "semi": false,
+  "singleQuote": true,
+  "htmlWhitespaceSensitivity": "ignore",
+  "printWidth": 160
+}

package.json

@@ -6,6 +6,7 @@
   "files": [
     "src/index.js"
   ],
+  "type": "module",
   "scripts": {
     "test": ""
   },
@@ -23,9 +24,13 @@
     "access": "public"
   },
   "dependencies": {
-    "@typescript-eslint/eslint-plugin": "^7.3.1",
-    "@typescript-eslint/parser": "^7.3.1",
-    "eslint": "^8.57.0",
-    "eslint-plugin-vue": "^9.23.0"
+    "eslint": "^9.9.1",
+    "eslint-plugin-vue": "^9.27.0",
+    "globals": "^15.9.0",
+    "typescript-eslint": "^8.3.0",
+    "vue-eslint-parser": "^9.4.3"
+  },
+  "devDependencies": {
+    "prettier": "^3.3.3"
   }
 }