Remove the JS wave effect (#1718)

Author: pfefferle

.github/changelog/1718-from-description

@@ -0,0 +1,4 @@
+Significance: minor
+Type: changed
+
+Refactored to use CSS for effects instead of JavaScript, simplifying the code.

build/reactions/index.asset.php

@@ -1 +1 @@
-<?php return array('dependencies' => array('react', 'wp-api-fetch', 'wp-block-editor', 'wp-blocks', 'wp-components', 'wp-element', 'wp-i18n'), 'version' => '861b76cedf6b7abcf57e');
+<?php return array('dependencies' => array('react', 'wp-api-fetch', 'wp-block-editor', 'wp-blocks', 'wp-components', 'wp-element', 'wp-i18n'), 'version' => '71a9b97929d16c6932ad');