UI: Set decimals to 0 by default

ui-ngx/src/app/core/api/widget-subscription.ts

@@ -340,7 +340,7 @@ export class WidgetSubscription implements IWidgetSubscription {
       }
 
       this.units = options.units || '';
-      this.decimals = isDefined(options.decimals) ? options.decimals : 2;
+      this.decimals = isDefined(options.decimals) ? options.decimals : 0;
 
       this.loadingData = false;
 

ui-ngx/src/app/modules/home/components/widget/widget-config.component.ts

@@ -496,7 +496,7 @@ export class WidgetConfigComponent extends PageComponent implements OnInit, OnDe
           },
           pageSize: isDefined(config.pageSize) ? config.pageSize : 1024,
           units: config.units,
-          decimals: config.decimals,
+          decimals: isDefined(config.decimals) ? config.decimals : 0,
           noDataDisplayMessage: isDefined(config.noDataDisplayMessage) ? config.noDataDisplayMessage : ''
         },
         {emitEvent: false}

ui-ngx/src/app/modules/home/models/widget-component.models.ts

@@ -152,7 +152,7 @@ export class WidgetContext {
   }
 
   get decimals(): number {
-    return isDefined(this.widget.config.decimals) ? this.widget.config.decimals : 2;
+    return isDefined(this.widget.config.decimals) ? this.widget.config.decimals : 0;
   }
 
   set changeDetector(cd: ChangeDetectorRef) {