Revert "build: Don't use GLIB_GSETTINGS as it's broken with srcdir != builddir"
Revert "build: Don't use GLIB_GSETTINGS as it's broken with srcdir != builddir"

This reverts commit fec5954f20afe30d74669917894f41ae68bd5206.

GNOME/hotssh,GNOME/hotssh