fix: correct local run description

Author: esbena

extensions/ql-vscode/src/view/common/ComparePerformanceLocalRunDescription.tsx

@@ -10,11 +10,13 @@ export const ComparePerformanceLocalRunDescription = ({
 }: Props) => {
   return (
     <div>
-      (fromQuery?
-      <strong>
-        Comparison of local runs of {fromQuery} and {toQuery}
-      </strong>
-      : Local run of {toQuery})
+      {fromQuery ? (
+        <strong>
+          Comparison of local runs of {fromQuery} and {toQuery}
+        </strong>
+      ) : (
+        <strong>Local run of {toQuery}</strong>
+      )}
     </div>
   );
 };