Grid: Add _ignoreCloseOnChildEscape to Popup init in columnChooser

Author: Ruslan Farkhutdinov

packages/devextreme/js/__internal/grids/grid_core/column_chooser/m_column_chooser.ts

@@ -174,6 +174,7 @@ export class ColumnChooserView extends ColumnsView {
       rtlEnabled: that.option('rtlEnabled'),
       container: columnChooserOptions.container,
       _loopFocus: true,
+      _ignoreCloseOnChildEscape: true,
     } as PopupProperties;
 
     if (!isDefined(this._popupContainer)) {

packages/devextreme/js/__internal/ui/popup/m_popup.ts

@@ -237,7 +237,6 @@ class Popup<
     if (this._$content && !$target.is(this._$content)
         && options.keyName === ESC_KEY_NAME
         && !e.isDefaultPrevented()
-        && !onlyChildProcessing
         && !_ignoreCloseOnChildEscape) {
       // eslint-disable-next-line @typescript-eslint/no-floating-promises
       this.hide();