Fix search editor scrolled to bottom on first search when editor grou…

…p changed. (#134693)

* Fix search editor scrolled to bottom on first search when editor group changed.

* Await model write before setting scroll.

Co-authored-by: Jackson Kearl <jakearl@microsoft.com>

src/vs/workbench/contrib/searchEditor/browser/searchEditor.ts

@@ -538,7 +538,7 @@ export class SearchEditor extends BaseTextEditor<SearchEditorViewState> {
 		});
 
 		const searchOperation = await startInput.ongoingSearchOperation;
-		this.onSearchComplete(searchOperation, config, startInput);
+		await this.onSearchComplete(searchOperation, config, startInput);
 	}
 
 	private async onSearchComplete(searchOperation: ISearchComplete, startConfig: SearchConfiguration, startInput: SearchEditorInput) {