Added config for first day in week for calendar widget (#2080)

src/utils/config/service-helpers.js

@@ -358,6 +358,7 @@ export function cleanServiceGroups(groups) {
           mappings, // customapi widget
           refreshInterval,
           integrations, // calendar widget
+          firstDayInWeek,
         } = cleanedService.widget;
 
         let fieldsList = fields;
@@ -443,6 +444,7 @@ export function cleanServiceGroups(groups) {
         }
         if (type === "calendar") {
           if (integrations) cleanedService.widget.integrations = integrations;
+          if (firstDayInWeek) cleanedService.widget.firstDayInWeek = firstDayInWeek;
         }
       }