keymap: Add missing Begin key to list of cursor keys
keymap: Add missing Begin key to list of cursor keys

rvu95/vte,thestinger/vte-ng,jessevdk/vte,jessevdk/vte,jessevdk/vte,thestinger/vte-ng,saitoha/vte-sixel,saitoha/vte-sixel,flaxandteal/gasket-vte,flaxandteal/gasket-vte,rvu95/vte,thestinger/vte-ng,rvu95/vte,jessevdk/vte,saitoha/vte-sixel,flaxandteal/gasket-vte,flaxandteal/gasket-vte,rvu95/vte