enable automated linting

eslint.config.js

@@ -1,12 +1,19 @@
 import tseslint from 'typescript-eslint';
 
-export default tseslint.config(
-    tseslint.configs.recommended,
-    {
-        files: ["**/*.ts", "**/*.tsx", "**/*.js", "**/*.jsx"],
-        rules: {
-            semi: "error",
-            "prefer-const": "error"
-        }
+export default tseslint.config({
+  files: ["**/*.{ts,tsx,js,jsx}"],
+  languageOptions: {
+    parser: tseslint.parser,
+    parserOptions: {
+      ecmaVersion: "latest",
+      sourceType: "module",
+      ecmaFeatures: {
+        jsx: true
+      }
     }
-);
+  },
+  rules: {
+    "semi": "error",
+    "prefer-const": "warn"
+  }
+});