[chore:] logging for AddressShortener.cs

Tasks/AddressShortener.cs

@@ -12,7 +12,8 @@ public class AddressShortener(ProgressWindow progressWindow)
 
     public async Task Perform(KasAddressList list)
     {
-        // find doubled addresses by refsid
+        try
+        {
             List<int> doubled_ids = new List<int>();
                     for (int i = 0; i < list.KasPersons.Count; i++)
                     {
@@ -73,7 +74,11 @@ public class AddressShortener(ProgressWindow progressWindow)
                         // does this remove both of the doubled addresses?
                         list.KasPersons.Remove(list.KasPersons.Find(x => x.id == id));
                     }
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing address shortener: {ex.Message}", Logger.LogType.Error);
+        }
         
-        //return null;
     }
 }