Fix class for Config/System"Default ordering" (#1359)
Fix class for Config/System"Default ordering" (#1359)

Fix class for both "Default ordering" and "Append URL extension"
stell/grav,notklaatu/grav,tomzx/blog.tomrochette.com,dimayakovlev/grav,joeyhenricks/a-broke-vegan,tomzx/blog.tomrochette.com,Vivalldi/grav,getgrav/grav,ccardinaux/grav-test,dimayakovlev/grav,notklaatu/grav,webuxr/iamrs,joeyhenricks/a-broke-vegan,shortsofia/testesitegrav.github.io,tomzx/blog.tomrochette.com,tomzx/blog.tomrochette.com,Vivalldi/grav,getgrav/grav,Sommerregen/grav