Address code review feedback - improve documentation and add error suppression in tests

Co-authored-by: swissspidy <841956+swissspidy@users.noreply.github.com>

Author: Copilot

features/plugin-activate.feature

@@ -189,7 +189,7 @@ Feature: Activate WordPress plugins
        */
       
       register_activation_hook( __FILE__, function() {
-        file_put_contents( WP_CONTENT_DIR . '/activation-test.txt', 'Activation hook was run' );
+        @file_put_contents( WP_CONTENT_DIR . '/activation-test.txt', 'Activation hook was run' );
       });
       """
 

features/plugin-install.feature

@@ -319,7 +319,7 @@ Feature: Install WordPress plugins
        */
       
       register_activation_hook( __FILE__, function() {
-        file_put_contents( WP_CONTENT_DIR . '/install-activation-test.txt', 'Activation hook was run' );
+        @file_put_contents( WP_CONTENT_DIR . '/install-activation-test.txt', 'Activation hook was run' );
       });
       """
 

src/Plugin_Command.php

@@ -322,7 +322,7 @@ protected function get_all_items() {
 	 * : If set, the plugin will be activated for the entire multisite network.
 	 *
 	 * [--force]
-	 * : If set, the plugin activation hooks will be run even if the plugin is already active.
+	 * : If set, deactivates and reactivates the plugin to re-run activation hooks, even if already active.
 	 *
 	 * ## EXAMPLES
 	 *