Describe the bug
Currently @duetds/date-picker does not work with Rollup (or I didn't get it to).
The problem appears to be a dynamic import statement with a template string:

return import(`./${bundleId}.entry.js${""}`);

Rollup seems to ignore these imports: "Dynamic imports on runtime are ignored by Rollup #2463"

**To

For use cases of conditional cell content, it would be helpful to render empty Div in ComponentRenderer and IconRenderer when given null value.

This is request for convenience and improved DX. It is possible to give empty Div already now as a component.

https://vaadin.com/forum/thread/17439129/grid-icon-column

Summary

By default an accordion should take up the entire width of the parent container. Right now it's set to max-width: 100%, which means that if content within the accordion's open items is not being displayed, the longest piece of text will set the extent of the component.

Setting the component to 100% width will make it more predictable when placing within containers that have flex s