[BUG] Missing scrollbar in output area for large outputs

[mweidling]

Describe the bug

After evaluating a query, the output is displayed in the output area of eXide.
Since eXist-db 5.3.0 larger output where the user has to scroll to see it completely doesn't cause the area to display a scrollbar anymore.

I observed this behaviour both in FF 89.0.2 (64-bit) for Ubuntu and Chrome Version 91.0.4472.114 (Official Build) (64-bit) on Xubuntu.

Expected behavior

When an output is so large that I have to scroll to see it completely, I would have expected a scrollbar so I can navigate easily.

To Reproduce

1. Get a large XML file (e.g. https://www.deutschestextarchiv.de/book/download_xml/goethe_leben01_1811) and store it in eXist-db 5.3.0
2. Write a small query that returns the large file, e.g. doc("/db/goethe_leben01_1811.TEI-P5.xml")//tei:TEI
3. Observe the output area. Even though the file is huge, there is no scrollbar displayed.

Screenshots

Output in eXist-db 5.2.0:

Output in eXist-db 5.3.0:

Context (please always complete the following information):

• OS: Xubuntu 18.04 LTS
• eXist-db Version: 5.3.0

[vincentml]

I've observed the same problem that scroll bars are now missing from the output pane after upgrading eXide to version 3.0.0. The environment is eXist-db version 5.2.0 running on Windows 2012 R2.