Merge branch '19.2.x' into apetrov/fix-bootstrap-border-19.2.x

Author: adrianptrv

projects/igniteui-angular/src/lib/date-picker/public_api.ts

@@ -5,6 +5,7 @@ import { IgxPrefixDirective } from '../directives/prefix/prefix.directive';
 import { IgxSuffixDirective } from '../directives/suffix/suffix.directive';
 import { IgxDatePickerComponent } from './date-picker.component';
 
+export * from './date-picker.common';
 export * from './date-picker.component';
 
 /* NOTE: Date picker directives collection for ease-of-use import in standalone components scenario */

projects/igniteui-angular/src/lib/grids/tree-grid/tree-grid.component.html

@@ -3,7 +3,6 @@
 <igx-grid-header-row class="igx-grid-thead" tabindex="0"
     [grid]="this"
     [hasMRL]="hasColumnLayouts"
-    [activeDescendant]="activeDescendant"
     [width]="calcWidth"
     [pinnedColumnCollection]="pinnedColumns"
     [unpinnedColumnCollection]="unpinnedColumns"