Container non fluid is breaking layout

Problem/Motivation

Hi!

I'm trying to use this theme on a site I'm updating. I notice that the layout is not working responsively and when I inspect for smaller devices, the blocks are not positioned correctly and the images are not reduced in size.

I went to analyze the generated html code, comparing it with the online version of the project and with a version installed on my local machine. I could see that the layout is being broken by the lack of a word: fluid.

I explain: In the opening div, both in the online version of the project, and in the one I installed on my machine, I have the following classes added:

Already on the site that I am adding this theme, I have the following classes added:

As a test, while I inspecting the code, I replaced the "container" class with "container-fluid" and the site became responsive.

I need to know how to configure the project so that the "container-fluid" class is automatically added.

Can someone help me? Thanks in advance.