refactor(grids): change button text in column pinning both side samples (#3800)

Author: IMinchev64

src/app/grid/grid-sample-pinning-both-sides/grid-toolbar-pinning-both-sides.component.html

@@ -14,9 +14,9 @@
     >
         <igx-grid-toolbar>
             <igx-grid-toolbar-actions>
-                <button igxButton="contained" (click)="unpinColumn()"> Unpin Column </button>
-                <button igxButton="contained" (click)="pinLeft()"> Pin Left </button>
-                <button igxButton="contained" (click)="pinRight()"> Pin Right </button>
+                <button igxButton="contained" (click)="unpinColumn()"> Unpin Selected Columns </button>
+                <button igxButton="contained" (click)="pinLeft()"> Pin Selected Left </button>
+                <button igxButton="contained" (click)="pinRight()"> Pin Selected Right </button>
             </igx-grid-toolbar-actions>
         </igx-grid-toolbar>
 

src/app/hierarchical-grid/hierarchical-grid-sample-both-sides-pinning/hierarchical-grid-both-sides-pinning.component.html

@@ -13,9 +13,9 @@
     <igx-grid-toolbar>
         <igx-grid-toolbar-title>Hierarchical Grid</igx-grid-toolbar-title>
             <igx-grid-toolbar-actions>
-                <button igxButton="contained" (click)="unpinColumn()"> Unpin Column </button>
-                <button igxButton="contained" (click)="pinLeft()"> Pin Left </button>
-                <button igxButton="contained" (click)="pinRight()"> Pin Right </button>
+                <button igxButton="contained" (click)="unpinColumn()"> Unpin Selected Columns </button>
+                <button igxButton="contained" (click)="pinLeft()"> Pin Selected Left </button>
+                <button igxButton="contained" (click)="pinRight()"> Pin Selected Right </button>
             </igx-grid-toolbar-actions>
         </igx-grid-toolbar>
 

src/app/tree-grid/tree-grid-sample-both-pinning/tree-grid-both-sides-pinning.component.html

@@ -14,9 +14,9 @@
     <igx-grid-toolbar>
       <igx-grid-toolbar>
             <igx-grid-toolbar-actions>
-                <button igxButton="contained" (click)="unpinColumn()"> Unpin Column </button>
-                <button igxButton="contained" (click)="pinLeft()"> Pin Left </button>
-                <button igxButton="contained" (click)="pinRight()"> Pin Right </button>
+                <button igxButton="contained" (click)="unpinColumn()"> Unpin Selected Columns </button>
+                <button igxButton="contained" (click)="pinLeft()"> Pin Selected Left </button>
+                <button igxButton="contained" (click)="pinRight()"> Pin Selected Right </button>
             </igx-grid-toolbar-actions>
         </igx-grid-toolbar>
     </igx-grid-toolbar>