Fix the issues reported by phpcs

I have reviewed your patch #2, This is working fine.

+/**
+ * @file
+ * Install, update and uninstall functions for the layout builder browser.
+ */
+

There is a missing comma before and.

- * #3184784: Ensure block config entity is installed on existing sites.
+ * Ensure block config entity is installed on existing sites(#3184784).

There is a missing space before the opening parenthesis.

+/**
+ * @file
+ * Defines hooks of the layout bulder browser module.
+ */

The correct short description for the module is Hook implementations for the Layout Builder Browser module.

+/**
+ * {@inheritdoc}
+ */
 function layout_builder_browser_link_alter(&$variables) {

That is not the documentation comment used from hook implementations.

 /**
- * Class BrowserController.
+ * Defines BrowserController class.
  */
 class BrowserController extends ControllerBase {

The short description is still repeating the class name and it does not say anything about its purpose.

+  /**
+   * The Block manager.
+   *
+   * @var \Drupal\Core\Block\BlockManagerInterface
+   */
+  protected $blockManager;

Block is misspelled, since it is not at the beginning of the sentence.

+   * @param \Drupal\Core\Block\BlockManagerInterface $blockManager
+   *   The blockManager.

The correct description is the one previously used, once Block is corrected.

addressed #4

Thanks all for reporting, reviewing and fixing these coding standards. I adapted few things which did not apply anymore after some recent change in the code base.

Automatically closed - issue fixed for 2 weeks with no activity.