fix(LOB): fix style in flex container to show pivot grid

Author: wnvko

src/app/pivot-grid/pivot-datasource/pivot-data-selector-sample.component.html

@@ -1,11 +1,8 @@
 <div class="pivot-container">
-    <div>
+    <div style="flex-grow: 1;">
         <igx-pivot-grid #grid1 [data]="data" [pivotConfiguration]="pivotConfigHierarchy" [height]="'850px'"
             [superCompactMode]="true" [defaultExpandState]='true'>
         </igx-pivot-grid>
     </div>
-
-
     <igx-pivot-data-selector [grid]="grid1"></igx-pivot-data-selector>
-
-</div>
+</div>

src/app/pivot-grid/pivot-datasource/pivot-data-selector-sample.component.ts

@@ -11,9 +11,7 @@ import { SALES_DATA_NEW } from '../../data/salesDataNew';
 })
 export class PivotDataSelectorSampleComponent {
     public data = SALES_DATA_NEW;
-
     public pivotConfigHierarchy: IPivotConfiguration;
-
     public dateDimension: IgxPivotDateDimension;
 
     constructor() {
@@ -73,6 +71,4 @@ export class PivotDataSelectorSampleComponent {
             ]
         };
     }
-
-
 }