Fix lastName field for Balázs Toldi

Author: Bazsalanszky

src/content/members/active.yml

@@ -271,7 +271,7 @@
   scholarPage: https://scholar.google.com/citations?user=lBI2BQMAAAAJ
   orcidPage: https://orcid.org/0000-0002-6260-5908
 - firstName: Balázs
-  lastname: Toldi
+  lastName: Toldi
   position: phdStudent
   avatar: ../images/members/toldi.jpg
   homePage: https://toldi.eu