refactoring: renamed sat package to libervia.backend

sat_frontends/primitivus/progress.py

@@ -17,7 +17,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from sat.core.i18n import _
+from libervia.backend.core.i18n import _
 import urwid
 from urwid_satext import sat_widgets
 from sat_frontends.quick_frontend import quick_widgets