Fixes empty search results in graph

src/webviews/apps/plus/graph/GraphWrapper.tsx

@@ -264,7 +264,7 @@ export function GraphWrapper({
 	}, [graphRows]);
 
 	useEffect(() => {
-		if (searchResultIds == null) {
+		if (searchResultIds == null || searchResultIds.length === 0) {
 			setSearchResultKey(undefined);
 			return;
 		}