adding sonarJS to our ESLint to evaluate it

.eslintignore

@@ -1,6 +1,5 @@
 helix-importer-ui
 tools/**/*
-blocks/swipper/swipper-bundle.min.js
 scripts/swiperjs/swiper-bundle.min.js
 scripts/dompurify.min.js
 sidekick-library.js

.eslintrc.js

@@ -1,9 +1,11 @@
 module.exports = {
   root: true,
+  plugins: ['sonarjs'],
   extends: [
     'airbnb-base',
     'plugin:json/recommended',
     'plugin:xwalk/recommended',
+    'plugin:sonarjs/recommended-legacy',
   ],
   env: {
     browser: true,

README.md

@@ -28,10 +28,12 @@ npm i
 ```
 
 ## Linting
+This project is using StyleLint and ESLint (including the SonarJS plugin for ESLint 8).
 
 ```sh
 npm run lint
 ```
+If for Stylelint you only see "No rules found within configuration", check by going to Settings --> VSCode settings and search "Stylelint". For both User and Workspace tabs, check settings.json to see if there is an empty entry for "stylelint.config": { }. Remove it from both places so that this project's .stylelintrc.json file will be used for the config.
 
 ## Local development