When api.fromJSON() is invoked to transfer the result returned by toJSON, an error is reported.

[gcokee]

Describe the bug
When api.fromJSON(layout) is invoked to transfer the result returned by api.toJSON(), an error is reported.
Uncaught (in promise) TypeError: Cannot read properties of null (reading'emitsOptions')

To Reproduce

<button @click="handleSaveLayout">Save Layout
<button @Click-"handleRecoverLayout">Recover Layout
<dockview-vue @ready="handleReady">

<script setup lang="ts"> function handleReady(event: DockviewReadyEvent) { dockview = event.api; } /** addpanel function */ ... /** addpanel end */ let layout: string; function handleSaveLayout() { layout = dockview.toJSON(); } function handleRecoverLayout() { dockview.fromJSON(layout); } </script>

Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Desktop (please complete the following information):

• Browser [chrome, electron]
• Version [dockview-vue 5.1.0]

Additional context
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