Using scrollbar closes properties

**Describe the bug**
When selecting an element with a lot of attributes, the scroll bar is not shown on the screen for the element itself, but on the complete page. Clicking the scrollbar to scroll down results in the attribute-window being closed. This feels counter-intuitive.

**Reporter**
Ricardo

**Category**
Use the following Tags to categorize your bug report

- Explorer
- Editor
- Flow
- Pipe options
- Palette
- Settings

**To Reproduce**
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**

**Additional context**
Add any other context about the problem here. (f.e. ladybug report, console error or test adapter with larva test)