se elimina boton de volver a paso 1 en paso 3

web/frontend/js/capture-2.js

@@ -37,7 +37,7 @@
                     width = 0;
                     height = 630;
 
-                    width = video.videoWidth / (video.videoWidth / height);
+                    width = video.videoWidth / (video.videoHeight / height);
                     console.log(width);
                     if (isNaN(width)) {
                         width = height / (4 / 3);