Add option to hide Links- and Info-Box

Problem

A Links- and Info-Box are shown right of the search-results as can be seen in the screenshot. I would like to disable/hide them and rather have more space for the results and center them. The reason is because I don't need the Links- and Info-Box and they simply take up space and are visual clutter. I prefer to show only the information I need.

Solution

Add an option in preferences to disable the boxes on the right side and instead increase the space for the search-results or center them.

Additional Context

Related: #1980