Enable save button on changing job unavailable preference (#28839)

Enable save button on changing unavailable pref

Fix an issue where the save button was disabled when just changing your job unavailable preference

Content.Client/Lobby/UI/HumanoidProfileEditor.xaml.cs

@@ -372,6 +372,7 @@ namespace Content.Client.Lobby.UI
             {
                 PreferenceUnavailableButton.SelectId(args.Id);
                 Profile = Profile?.WithPreferenceUnavailable((PreferenceUnavailableMode) args.Id);
+                SetDirty();
             };
 
             _jobCategories = new Dictionary<string, BoxContainer>();