make eslint 9 compliant

src/index.js

@@ -1,6 +1,5 @@
 import js from "@eslint/js";
-import tseslint from "@typescript-eslint/eslint-plugin";
-import tsParser from "@typescript-eslint/parser";
+import tseslint from "typescript-eslint";
 import react from "eslint-plugin-react";
 import reactHooks from "eslint-plugin-react-hooks";
 import a11y from "eslint-plugin-jsx-a11y";
@@ -11,54 +10,37 @@ export default [
     /* Core ESLint recommended rules */
     js.configs.recommended,
 
-    /* TypeScript recommended */
-    {
-        files: ["**/*.ts", "**/*.tsx"],
-        languageOptions: {
-            parser: tsParser,
-            parserOptions: {
-                project: true
-            }
-        },
-        plugins: {
-            "@typescript-eslint": tseslint
-        },
+    /* TypeScript (flat, type-checked) */
+    ...tseslint.configs.recommendedTypeChecked,
 
-        ...tseslint.configs["recommended-type-checked"]
-    },
-
-    /* React recommended */
+    /* React */
     react.configs.flat.recommended,
 
-    /* React Hooks recommended */
+    /* React Hooks */
     {
-        plugins: { "react-hooks": reactHooks },
-        rules: {
-            ...reactHooks.configs.recommended.rules
-        }
+        plugins: {
+            "react-hooks": reactHooks,
+        },
+        rules: reactHooks.configs.recommended.rules,
     },
 
-    
-    /* JSX Accessibility recommended */
+    /* JSX Accessibility */
     a11y.flatConfigs.recommended,
 
-    /* Import validation rules */
+    /* Import rules */
     importPlugin.flatConfigs.recommended,
 
     /* Unused imports */
     {
-        plugins: { "unused-imports": unusedImports },
+        plugins: {
+            "unused-imports": unusedImports,
+        },
         rules: {
             "unused-imports/no-unused-imports": "error",
             "unused-imports/no-unused-vars": [
                 "warn",
-                { argsIgnorePattern: "^_", varsIgnorePattern: "^_" }
+                { argsIgnorePattern: "^_", varsIgnorePattern: "^_" },
             ],
-            '@stylistic/indent': ['error', 4],
-            '@stylistic/semi': ['error', 'always'],
-            '@stylistic/quotes': ['error', 'single', { avoidEscape: true }],
-            '@stylistic/no-trailing-spaces': 'error',
-            '@stylistic/no-multiple-empty-lines': 'error',
-        }
-    }
+        },
+    },
 ];