doap: Add desktop category
doap: Add desktop category

aligo/vte,saitoha/vte-sixel,jessevdk/vte,jessevdk/vte,saitoha/vte-sixel,flaxandteal/gasket-vte,asivokon/vte-fx,rvu95/vte,rvu95/vte,gloob/vte-copy,flaxandteal/gasket-vte,aligo/vte,pjm0616/vte,saitoha/vte-sixel,thestinger/vte-ng,gloob/vte-copy,asivokon/vte-fx,rvu95/vte,flaxandteal/gasket-vte,asivokon/vte-fx,jessevdk/vte,jessevdk/vte,asivokon/vte-fx,thestinger/vte-ng,thestinger/vte-ng,rvu95/vte,pjm0616/vte,flaxandteal/gasket-vte,pjm0616/vte,gloob/vte-copy,aligo/vte