Merge pull request SORMAS-Foundation#4147 from ImisDevelopers/bugfix-4052-contact-dashboard-expanding

SORMAS-Foundation#4052 Fix bug where contact officer could not expand map and chart

Author: MateStrysewske

sormas-ui/src/main/java/de/symeda/sormas/ui/dashboard/contacts/ContactsDashboardView.java

@@ -379,7 +379,9 @@ protected VerticalLayout createEpiCurveLayout() {
 				rowsLayout.setHeightUndefined();
 			}
 			caseStatisticsLayout.setVisible(!expanded);
-			networkDiagramRowLayout.setVisible(!expanded);
+			if (networkDiagramRowLayout != null) {
+				networkDiagramRowLayout.setVisible(!expanded);
+			}
 			contactsStatisticsLayout.setVisible(!expanded);
 		});
 
@@ -418,7 +420,9 @@ protected Optional<VerticalLayout> createMapLayout() {
 				rowsLayout.setHeightUndefined();
 			}
 			caseStatisticsLayout.setVisible(!expanded);
-			networkDiagramRowLayout.setVisible(!expanded);
+			if (networkDiagramRowLayout != null) {
+				networkDiagramRowLayout.setVisible(!expanded);
+			}
 			contactsStatisticsLayout.setVisible(!expanded);
 		});