chore(*): removing displayDensity in demo

Author: kdinev

src/app/grid-localization/grid-localization.sample.html

@@ -1,7 +1,7 @@
 <div class="sample-column">
     <div class="grid-wrapper">
         <igx-grid #grid [data]="data" [autoGenerate]="false" height="520px" width="100%"
-            [allowFiltering]="true" [locale]="locale" displayDensity="compact">
+            [allowFiltering]="true" [locale]="locale">
             <igx-column field="Category" header="Category" [dataType]="'string'" [groupable]="true">
             </igx-column>
             <igx-column field="Type" header="Type" [sortable]="true" [hasSummary]="true" [editable]="true"