We already do this in rows, so to best support our containers, we need
to do it at the container level as well.
Fixes#32658, fixes#34614, closes#32658.
Co-authored-by: XhmikosR <xhmikosr@gmail.com>
- Replaces make-container mixin's padding-x param with gutter to match naming
- Changes value of container padding variable to match grid gutter width variable
- Uses local CSS variable for container padding
Fixes#31642