Describe the bug
Panel content does not render when dragged to extreme drop targets and
<DockviewReact defaultRenderer="always" />.

The reference to the panel content is not lost, as giving dockview a nudge will restore the content to the expected state. So it is simply not appearing.

To Reproduce
dockview.dev provides a number of examples with Code Sandbox templates. Are you able to produce the bug by forking one of those templates? Sharing a link to the forked sandbox with the bug would be extremely helpful.

https://codesandbox.io/p/sandbox/vibrant-swirles-mz7j86

Steps to reproduce the behavior:

1. Drag panel to extreme drop target
2. Notice no content
3. Nudging restores content

Expected behavior
Panel content doesn't disappear.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• Chrome [e.g. chrome, safari]
• 139 [e.g. 22]

Additional context
Add any other context about the problem here.