radselect: allow to configure font of results list
Almost every font may be configured in kiten, except for results list in radical selector application.
The goal of this change is to allow it to be configured as well.
In order to see text in question, run kiten, press 'Radical Selector' button. In newly opened window there are 2 parts. Top part contains currently empty list of results. Bottom part contains list of radicals. After pressing any radical button in bottom part of window, top part is filled with kanji containing selected radical.
Currently only radical buttons' font is configurable. This change allows to independently configure result kanji font.