Use .eslintrc.js instead of eslintConfig

Using a .eslintrc.js file is more flexible and the preferred way in all
our projects. It has the advantage, that it makes it easier to adapt the
ESLint configuration, e.g. to exclude files from linting as it is done
in pc-nrfconnect-npm.

Author: datenreisender

.eslintrc.js

@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) 2023 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-4-Clause
+ */
+
+module.exports = require('@nordicsemiconductor/pc-nrfconnect-shared/config/eslintrc');

package.json

@@ -49,8 +49,5 @@
     "devDependencies": {
         "@nordicsemiconductor/pc-nrfconnect-shared": "^234.0.0"
     },
-    "eslintConfig": {
-        "extends": "./node_modules/@nordicsemiconductor/pc-nrfconnect-shared/config/eslintrc"
-    },
     "prettier": "@nordicsemiconductor/pc-nrfconnect-shared/config/prettier.config.js"
 }