Dive merging: make sure that the profile is redrawn

This uses the just introduced refreshProfile() function.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-ui/divelistview.cpp

@@ -612,6 +612,7 @@ void DiveListView::mergeDives()
 			}
 		}
 	}
+	MainWindow::instance()->refreshProfile();
 	MainWindow::instance()->refreshDisplay();
 }