Screen improvement discussion

1. Request for improvement in temporal layout

- In the current time layouts(calendar,timeline layouts), the only display property is ID. Improvements are needed so that important properties can be exposed.

- Additionally, the calendar layout needs improvement as it is only expressed based on due date rather than the date being specified as a range.

2. Expression of subtasks

- In the case of the list layout and table layout, the upper and lower tasks are displayed in an accordion format, but improvements are needed to enable the corresponding expression for the remaining layouts.

3. Mermaid code integration function

• Please add the markdown render function so that the graph can be displayed when writing as a bundle of mermaid code codes.