Cannot find .m-r-10 class

[Renderz]

Screenshot

Description

e.g. Cannot find '.m-r-10' css class in CollectionTable component, seems missing in src/assets/stylesheets/superset.less.

Design input

[describe any input/collaboration you'd like from designers, and
tag accordingly. For design review, add the
label design:review. If this includes a design proposal,
include the label design:suggest]