toggle focus between query and results (#13928)

* toggle focus between query and results

* focus on tab

* comments

src/sql/workbench/contrib/query/browser/queryResultsView.ts

@@ -430,4 +430,8 @@ export class QueryResultsView extends Disposable {
 			tab.putState(this.input.state.dynamicModelViewTabsState);
 		}
 	}
+
+	public focus(): void {
+		this._panelView.focusCurrentTab();
+	}
 }