Window: document headers misalign when resizingEnabled is true in DocumentHandler

[Sunix71]

Bug description

When resizingEnabled: true is set in the DocumentHandler plugin options, document
headers jump/misalign when a document is opened and scrolled to a specific heading
(via search results or internal document links that use a headerIdentifier).

Opening a document at the top (e.g. via the panel menu) does NOT trigger the issue.
The problem only occurs when the document viewer scrolls to a specific heading.

Setting resizingEnabled: false resolves the issue completely.

Steps to reproduce

1. Configure the DocumentHandler plugin with "resizingEnabled": true in the map config.
2. Search for a heading inside a document and click the search result.
3. Expected: Document opens and scrolls correctly to the heading.
4. Actual: The heading jumps upward and appears misaligned. Persists until page reload.

Opening the same document via the panel menu (no specific heading) works fine.

Root cause (suspected)

The scroll-to-header mechanism (triggered by headerIdentifier) interacts badly
with react-rnd's resize layout when resizingEnabled: true. The window or its
content container likely recalculates position/height during the scroll, causing
the visible content to jump.

Affected file

apps/client/src/components/Window.jsx

Workaround

Set "resizingEnabled": false in the DocumentHandler plugin options.

[Sunix71]

Copyright: Jesper