Xray dropdowns are also moving when scrolling the page

The Xray dropdowns are moving when scrolling the page. They must remain fixed in the same element.

Known cases:

• Actions within the Test Runs table on the Test view issue screen.
• Filters on the Test Runs table on the Test view issue screen.
• Filters on the Test Runs table on the Test Execution view issue screen.
• Test Execution Columns layout on the Test Execution view issue screen.