message: fix: disable input when max items is selected
  closes
diff: [attr.tabindex]="tabIndex"
  [attr.autocorrect]="autoCorrect"
  [attr.autocapitalize]="autoCapitalize"
  - [readOnly]="!searchable"
  + [readOnly]="!searchable || itemsList.maxItemsSelected"
  [disabled]="disabled"
  [value]="filterValue ? filterValue : ''"
  (input)="filter(filterInput.value)"
  