How to add a pager at both the top and bottom of a View
Ok, I solved it.

In my theme, I had copied all the content of classy theme because is like a copy of this.

In the theme exist an "templeate" folder, this have another folder called "views" inside this folder exist the file called "views-view.html.twig" in this file exist a few printing variables whit if conditions. All I had to do was copy the:


{% if pager %}
 {{ pager }}
{% endif %}

Condition almost at the end of the "template" and paste it where is above the content and voilà, I have my pager at the top and the bottom of my template.

I hope this be useful for anybody.

Thanks for your comments.