fix(grid): remove unnecessary cell-select class from igx-select components (#3851)

Author: mddragnev

src/app/grid/grid-select/grid-select-sample.component.html

@@ -3,7 +3,7 @@
   </igx-column>
   <igx-column field="race" header="Race" [editable]="true">
     <ng-template igxCellEditor let-cell="cell" let-value>
-      <igx-select class="cell-select" [(ngModel)]="cell.editValue" [igxFocus]="true">
+      <igx-select [(ngModel)]="cell.editValue" [igxFocus]="true">
         @for (race of races; track race) {
           <igx-select-item [value]="race">
             {{ race }}
@@ -14,7 +14,7 @@
   </igx-column>
   <igx-column field="class" header="Class" [editable]="true">
     <ng-template igxCellEditor let-cell="cell" let-value>
-      <igx-select class="cell-select" [(ngModel)]="cell.editValue" [igxFocus]="true">
+      <igx-select [(ngModel)]="cell.editValue" [igxFocus]="true">
         @for (class of classes; track class) {
           <igx-select-item [value]="class">
             {{ class }}
@@ -27,7 +27,7 @@
   </igx-column>
   <igx-column field="alignment" header="Alignment" [editable]="true">
     <ng-template igxCellEditor let-cell="cell" let-value>
-      <igx-select class="cell-select"  [(ngModel)]="cell.editValue" [igxFocus]="true">
+      <igx-select [(ngModel)]="cell.editValue" [igxFocus]="true">
         @for (alignment of alignments; track alignment) {
           <igx-select-item [value]="alignment">
             {{ alignment }}

src/app/grid/grid-select/grid-select-sample.component.scss

@@ -2,8 +2,3 @@
     display: block;
     padding: 16px;
 }
-
-.cell-select {
-    width: 100%;
-    height: 100%;
-}