fix(*): Increased the height to 420

Author: gedinakova

src/app/interactions/query-builder/query-builder-request-sample/query-builder-request-sample.component.html

@@ -6,6 +6,6 @@
     </igx-query-builder>
 
     <div class="output-area">
-        <igx-grid #grid [data]="data" [autoGenerate]="true" height="400px"></igx-grid>
+        <igx-grid #grid [data]="data" [autoGenerate]="true" height="420px"></igx-grid>
     </div>
 </div>