build: extend gts base config in flat configs and remove redundant ignores

Author: shivanee-p

handwritten/eslint.config.mjs

@@ -1,7 +1,18 @@
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { FlatCompat } from '@eslint/eslintrc';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+});
+
 export default [
+  ...compat.extends('gts'),
   {
     ignores: [
-      "**/node_modules/**",
       "**/build/**",
       "**/coverage/**",
       "**/.nyc_output/**"

packages/eslint.config.mjs

@@ -1,7 +1,18 @@
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { FlatCompat } from '@eslint/eslintrc';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+});
+
 export default [
+  ...compat.extends('gts'),
   {
     ignores: [
-      "**/node_modules/**",
       "**/.coverage/**",
       "**/build/**",
       "**/docs/**",