change GuiFamilyOption precedence to match GuiPersonOption

(that is, use any "overridden" value, then any "active"
family, then any family of the "active" person, and only
then fall back on others, such as a saved-away family option
value, or any family of the user's "default" person)


git-svn-id: svn+ssh://svn.code.sf.net/p/gramps/code/trunk@22090 4ae1f11a-8b86-4847-b8af-ab372f36d1fd