Only reset initial CQL in cql search header form if value changes

This was causing problems when the user wanted to write something more
in the text field, but upon searching, the query didn't update.

src/apps/advanced-search/CqlSearchHeader.tsx

@@ -18,7 +18,7 @@ const CqlSearchHeader: React.FC<CqlSearchHeaderProps> = ({
     if (initialCql.trim() !== "") {
       setCql(initialCql);
     }
-  });
+  }, [initialCql, setCql]);
 
   return (
     <>