SORMAS-Foundation#3368 - add sub layout styling

Author: barnabartha

sormas-ui/src/main/java/de/symeda/sormas/ui/dashboard/campaigns/CampaignDashboardView.java

@@ -129,7 +129,7 @@ private void refreshSubTabs(Page page, String tabId, VerticalLayout subTabLayout
 		currentSubTabsWrapper = subTabSwitcherLayout;
 		subTabLayout.addComponent(subTabSwitcherLayout);
 		subTabLayout.setExpandRatio(subTabSwitcherLayout, 0);
-		subTabSwitcherLayout.setStyleName("highlighted-statistics-component");
+		subTabSwitcherLayout.addStyleNames("statistics-sublayout", CssStyles.VSPACE_3);
 
 		subTabs.forEach(subTabId -> subTabSwitcher.addView(subTabId, subTabId, (e) -> {
 			subTabLayout.removeComponent(currentDiagramsWrapper);

sormas-ui/src/main/webapp/VAADIN/themes/sormas/views/dashboard.scss

@@ -29,6 +29,10 @@
   	background-color: $v-focus-light-color;
   	padding-top: 16px;
   }
+
+  .statistics-sublayout {
+  	background-color: $v-focus-light-color;
+  }
 
   .cfr-info-button {
     margin-top: -3px;