Dismiss member messageTRELLO_DISMISS_MEMBER_MESSAGE
Dismisses a one-time message for a Trello member, adding it to their dismissed messages list. This endpoint marks a specific one-time message (notification, banner, or prompt) as dismissed for the specified member. Once dismissed, the message will not be shown to the user again. Common use cases include dismissing onboarding messages, feature announcements, or team-specific prompts. Requires write access to the member's account. Use 'me' as idMember for the authenticated user.