feat: admin club filter fetch all club

fix: log null update case

src/main/java/fr/titionfire/ffsaf/domain/service/LoggerService.java

@@ -86,7 +86,9 @@ public class LoggerService {
     public void logChange(String champ, Object o1, Object o2, LoggableModel model) {
         if (Objects.equals(o1, o2))
             return;
-        log(ActionType.UPDATE, champ + ": " + o1.toString() + " -> " + o2.toString(), model);
+        log(ActionType.UPDATE,
+                champ + ": " + (o1 == null ? "null" : o1.toString()) + " -> " + (o2 == null ? "null" : o2.toString()),
+                model);
     }
 
     public void logDelete(LoggableModel model) {