Always set the CSS variables for gutters in containers (#34644)
Always set the CSS variables for gutters in containers (#34644)

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 <b60f67e10123951b393d9ba15dcf79efc14744bb@gmail.com>
inway/bootstrap,tjkohli/bootstrap,coliff/bootstrap,coliff/bootstrap,m5o/bootstrap,m5o/bootstrap,inway/bootstrap,twbs/bootstrap,twbs/bootstrap,tjkohli/bootstrap,inway/bootstrap