chore(eslint): upgrade eslint config

Author: bartholomej

.eslintrc.json

@@ -0,0 +1,70 @@
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import js from '@eslint/js';
+import { FlatCompat } from '@eslint/eslintrc';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all,
+});
+
+export default [
+  {
+    ignores: ['projects/**/*'],
+  },
+  ...compat
+    .extends(
+      'eslint:recommended',
+      'plugin:@typescript-eslint/recommended',
+      'plugin:@angular-eslint/recommended',
+      'plugin:@angular-eslint/template/process-inline-templates',
+    )
+    .map((config) => ({
+      ...config,
+      files: ['**/*.ts'],
+    })),
+  {
+    files: ['**/*.ts'],
+
+    languageOptions: {
+      ecmaVersion: 5,
+      sourceType: 'script',
+
+      parserOptions: {
+        project: ['tsconfig.json', 'e2e/tsconfig.json'],
+        createDefaultProgram: true,
+      },
+    },
+
+    rules: {
+      '@angular-eslint/component-selector': [
+        'error',
+        {
+          prefix: 'ngx',
+          style: 'kebab-case',
+          type: 'element',
+        },
+      ],
+
+      '@angular-eslint/directive-selector': [
+        'error',
+        {
+          prefix: 'ngx',
+          style: 'camelCase',
+          type: 'attribute',
+        },
+      ],
+    },
+  },
+  ...compat.extends('plugin:@angular-eslint/template/recommended').map((config) => ({
+    ...config,
+    files: ['**/*.html'],
+  })),
+  {
+    files: ['**/*.html'],
+    rules: {},
+  },
+];