Disabled button pointer cursor

[ysds]

The cursor is a pointer.

• 4.4: https://getbootstrap.com/docs/4.4/components/buttons/#disabled-state
• v5: https://twbs-bootstrap.netlify.com/docs/4.3/components/buttons/#disabled-state

[ysds]

This issue related #29239

CC/ @MartijnCuppens

[mdo]

Removing the v5 label and project here to be clear about this now only needing a fix in v4.

[MartijnCuppens]

Closed by #29835