Design main window: UI improvement for the graph tab, QBox, titles...

src/View/Translate.py

@@ -178,6 +178,12 @@ class MainTranslate(UnitTranslate):
         self._dict["tab_graph_name"] = _translate(
             "MainWindow", "Graph"
         )
+        self._dict["graph_network_title"] = _translate(
+            "MainWindow", "Hydrographic network"
+        )
+        self._dict["graph_geographic_title"] = _translate(
+            "MainWindow", "Geographic view"
+        )
 
         self._dict["open_debug"] = _translate(
             "MainWindow", "Open debug window"