Limit content width on larger screens

[IngridRegina]

I think 1800px would be ok for max-width. Basically if we would only limit the width of the hero carousel, it would look weird since everything else would still be full width. So we need to:

• max-width: 1800px and margin: 0 auto to c-slider, c-header, c-footer
• add max-width: 1800px, background-color: #1e1e1e (white background is already taken care of) and margin: 0 auto to c-section as well
• probably need to override the c-section background color for footer, best to create an "--orange" modifier for c-section
• possibly something else that I'm missing, check if everything looks okay with google developer tools (choose "responsive" from the device toolbar and insert some bigger ratio)