Fixes: #8862 Fixes: #10716 This adds the machinery to pass configuration settings received over DBus down to the GObject Surface so that that configuration information can be used to override some settings from the current "live" config when creating a new window. Currently it's only possible to override `--working-directory` and `--command`. `-e` on the `ghostty +new-window` CLI works as well. Adding more overridable settings is possible, but being able to fully override any possible setting would better be served with a major revamp of how Ghostty handles configs, which I is way out of scope at the moment.