Fix #57890 - clear search error when search input is changed

src/vs/workbench/parts/search/browser/searchWidget.ts

@@ -384,6 +384,7 @@ export class SearchWidget extends Widget {
 	}
 
 	private onSearchInputChanged(): void {
+		this.searchInput.clearMessage();
 		this.setReplaceAllActionState(false);
 	}