Fix captcha image overflow

Bug: T358024
Change-Id: Ibbbd434a06f683ed9aae0d80ec04ee4df9864a50
(cherry picked from commit 24ca43e5ca)

FancyCaptcha/resources/ext.confirmEdit.fancyCaptcha.less

@@ -8,6 +8,10 @@ layout, for normal CAPTCHA sizes. */
 	display: inline-block;
 }
 
+.fancycaptcha-image {
+	max-width: 100%;
+}
+
 .fancycaptcha-reload {
 	.background-image( 'images/refresh.svg' );
 	background-position: left center;