refactor(addEntries): make use of includes (#2205)

Author: jamesgeorge007

lib/utils/addEntries.js

@@ -111,12 +111,14 @@ function addEntries(config, options, server) {
     // eslint-disable-next-line no-shadow
     [].concat(config).forEach((config) => {
       /** @type {Boolean} */
-      const webTarget =
-        config.target === 'web' ||
-        config.target === 'webworker' ||
-        config.target === 'electron-renderer' ||
-        config.target === 'node-webkit' ||
-        config.target == null;
+      const webTarget = [
+        'web',
+        'webworker',
+        'electron-renderer',
+        'node-webkit',
+        undefined, // eslint-disable-line
+        null,
+      ].includes(config.target);
       /** @type {Entry} */
       const additionalEntries = checkInject(
         options.injectClient,