Improved GUI method/property selection logic
It is currently a bit difficult for the user to find a checkbox for filtering for the presence of a specific method or property.
E.g. the method checkboxes are a bit hidden inside the Method panel, and they are given in one list. It would be more logical to include these checkboxes in the corresponding filter subpanel, e.g. a checkbox under the DFT-panel.
The same logic then applies to properties. Currently, we show a list of property checkboxes in the subpanels. These should be broken down into individual checkboxes that are shown in the associated panel item, e.g. a checkbox for band gaps should be shown in the Band Gap section.
The placement of these checkboxes has to be figured out. Also, we may have to get rid of the statistics, because it may not make much sense to show them for an isolated checkbox.