CollapsiblePanel: panel's content doesn't grow over the full container's width

Describe the bug CollapsiblePanel’s content doesn’t grow over the full container’s width.

To Reproduce Steps to reproduce the behavior:

Check the following code:

import {
  Card,
  CollapsiblePanel, Spacings, TextField
} from "@commercetools-frontend/ui-kit";

<CollapsiblePanel
  header={
    <CollapsiblePanel.Header>Collapsible Panel Header</CollapsiblePanel.Header>
  }
>
  <Spacings.Inline>
    <Card type="flat">
      <TextField name="variant-sku" title="SKU" horizontalConstraint={11} />
    </Card>
    <Card type="flat">
      <TextField name="variant-key" title="Key" horizontalConstraint={11} />
    </Card>
  </Spacings.Inline>
</CollapsiblePanel>;

Expected behavior CollapsiblePanel’s content should grow over the full container’s width.

Screenshots

[emmenko]

Thanks for reporting. We’ll take a look at this and see what we can do.

[kark]

Many thanks again for your reply and providing the code sample. We will need more time for researching how the defaults would influence all the use cases