Adjust font padding to account for characters with wcwidth() != 1.
Adjust font padding to account for characters with wcwidth() != 1.

* src/vte.c: Adjust font padding to account for characters with wcwidth() != 1.

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