fix(alert): typo in template

Author: xidedix

projects/coreui-angular/src/lib/alert/alert.component.html

@@ -2,7 +2,7 @@
   <ng-template [ngIf]="dismissible">
     <ng-container *ngTemplateOutlet="templates?.alertButtonCloseTemplate || defaultAlertButtonCloseTemplate">
     </ng-container>
-  </ng-template>ś
+  </ng-template>
   <ng-content></ng-content>
 </ng-container>