OO-4561: beautify breadcrumbs in lectures administration

src/main/java/org/olat/modules/lecture/ui/LecturesMainController.java

@@ -63,7 +63,8 @@ public class LecturesMainController extends MainLayoutBasicController implements
 		listenTo(columnLayoutCtr); // auto dispose later
 		putInitialPanel(columnLayoutCtr.getInitialComponent());
 		
-		content.rootController("[ROOT]", lectureCoachingCtrl);
+		String title = translate("coach.lectures");
+		content.rootController(title, lectureCoachingCtrl);
 	}
 
 	@Override

src/main/webapp/static/themes/light/modules/_lecture.scss

@@ -93,4 +93,8 @@
 .o_rollcall_portrait>div {
 	margin: 0 auto 10px auto;
 	width: 100px;
-}
\ No newline at end of file
+}
+
+.o_lectures div#o_main_toolbar.o_toolbar {
+	margin-top: 0px;
+}