Fixed imports

Author: Martin Wahnschaffe

sormas-ui/src/main/java/de/symeda/sormas/ui/campaign/campaigns/CampaignGrid.java

@@ -36,7 +36,10 @@
 import de.symeda.sormas.api.utils.SortProperty;
 import de.symeda.sormas.ui.ControllerProvider;
 import de.symeda.sormas.ui.ViewModelProviders;
-import de.symeda.sormas.ui.utils.*;
+import de.symeda.sormas.ui.utils.CssStyles;
+import de.symeda.sormas.ui.utils.FilteredGrid;
+import de.symeda.sormas.ui.utils.ShowDetailsListener;
+import de.symeda.sormas.ui.utils.ViewConfiguration;
 
 public class CampaignGrid extends FilteredGrid<CampaignIndexDto, CampaignCriteria> {