main-window: elipsize "No match found" message
main-window: elipsize "No match found" message

This avoid to enlarge the contact list when displaying it (#631455).

GNOME/telepathy-account-widgets,Distrotech/telepathy-account-widgets,Distrotech/telepathy-account-widgets,GNOME/telepathy-account-widgets,GNOME/telepathy-account-widgets