- AddTeamMemberDialog: First name / Last name now share a row, and
Password / Confirm password share a row. Each field uses sx={flex:1}
so the row totals match the width of the email/role rows below.
- InviteTeamMemberDialog: drop the redundant mt={theme.spacing(...)}
workaround on the form Stack (the new Dialog component provides this
spacing).
- Constants conformance: spacing literals replaced with LAYOUT.XS.