refactor(grid): unhide grid selection range methods (#12539)

Co-authored-by: Stamen Stoychev <[email protected]>
Co-authored-by: Radoslav Karaivanov <[email protected]>
Co-authored-by: Hristo <[email protected]>

Author: 4 people

projects/igniteui-angular/src/lib/grids/grid-base.directive.ts

@@ -5756,7 +5756,7 @@ export abstract class IgxGridBaseDirective extends DisplayDensityBase implements
     }
 
     /**
-     * @hidden @internal
+     * Select range(s) of cells between certain rows and columns of the grid.
      */
     public selectRange(arg: GridSelectionRange | GridSelectionRange[] | null | undefined): void {
         if (!this.isDefined(arg)) {
@@ -5796,7 +5796,7 @@ export abstract class IgxGridBaseDirective extends DisplayDensityBase implements
     }
 
     /**
-     * @hidden @internal
+     * Get the currently selected ranges in the grid.
      */
     public getSelectedRanges(): GridSelectionRange[] {
         return this.selectionService.ranges;