Swimlane support for Kanban layout

Summary Add swimlanes to the Kanban layout in order to group items by another level besides the columns. Basic Example <img width="100%" alt="swimlanes_jira" src=" <img width="100%" alt="swimlanes_trello" src=" Motivation Swimlanes provide an effective visual organization method in Kanban boards. By introducing swimlanes to directus, users will be able to categorize and group tasks or items based on specific criteria, such as teams, projects, or priority levels. This feature will enhance the flexibility and usability of the Kanban layout, making it easier for users to manage and track their workflows. Detailed Design The swimlanes feature should allow users to create and customize swimlanes within the Kanban layout. Users should be able to define the criteria for swimlane creation, such as custom fields or labels. The swimlanes should be visually distinct and display relevant information for each lane, such as la…