accourse banner carousel: slide2 control on right, + display when ready

src/Bundle/ChillMainBundle/Resources/public/module/bootstrap/index.js

@@ -28,6 +28,9 @@ if (ACHeaderSlider) {
             touch: true
         })
     ;
+    document.addEventListener('DOMContentLoaded', (e) => {
+        controlNext.classList.remove('visually-hidden');
+    });
     ACHeaderSlider.addEventListener('slid.bs.carousel', (e) => {
         //console.log('from slide', e.direction, e.relatedTarget, e.from, e.to );
         switch (e.to) {