misc: prevent crashes

src/Ryujinx/UI/Views/Settings/SettingsHacksView.axaml

@@ -42,7 +42,7 @@
                         VerticalAlignment="Center"
                         Text="Xenoblade Chronicles 2 Menu Softlock Fix" />
                 </StackPanel>
-                <!--<Separator/>
+                <Separator/>
                 <StackPanel
                     Margin="0,10,0,0"
                     Orientation="Horizontal"
@@ -68,7 +68,7 @@
                         VerticalAlignment="Center"
                         Minimum="1"
                         Maximum="1000" />
-                <Separator/>-->
+                <Separator/>
             </StackPanel>
         </Border>
     </ScrollViewer>

src/Ryujinx/Utilities/Configuration/ConfigurationState.Migration.cs

@@ -752,7 +752,7 @@ namespace Ryujinx.Ava.Utilities.Configuration
             Hacks.ShowDirtyHacks.Value = configurationFileFormat.ShowDirtyHacks;
 
             {
-                EnabledDirtyHack[] hacks = configurationFileFormat.DirtyHacks.Select(EnabledDirtyHack.FromPacked).ToArray();
+                EnabledDirtyHack[] hacks = (configurationFileFormat.DirtyHacks ?? []).Select(EnabledDirtyHack.FromPacked).ToArray();
             
                 Hacks.Xc2MenuSoftlockFix.Value = hacks.Any(it => it.Hack == DirtyHacks.Xc2MenuSoftlockFix);
             

src/Ryujinx/Utilities/Configuration/ConfigurationState.Model.cs

@@ -10,6 +10,7 @@ using Ryujinx.Common.Logging;
 using Ryujinx.HLE;
 using System.Collections.Generic;
 using System.Linq;
+using RyuLogger = Ryujinx.Common.Logging.Logger;
 
 namespace Ryujinx.Ava.Utilities.Configuration
 {
@@ -644,9 +645,20 @@ namespace Ryujinx.Ava.Utilities.Configuration
 
             private void HackChanged(object sender, ReactiveEventArgs<bool> rxe)
             {
-                Ryujinx.Common.Logging.Logger.Info?.Print(LogClass.Configuration, $"EnabledDirtyHacks set to: [{EnabledHacks.Select(x => x.Hack).JoinToString(", ")}]", "LogValueChange");
+                var newHacks = EnabledHacks.Select(x => x.Hack)
+                    .JoinToString(", ");
+
+                if (newHacks != _lastHackCollection)
+                {
+                    RyuLogger.Info?.Print(LogClass.Configuration, 
+                        $"EnabledDirtyHacks set to: [{_lastHackCollection}]", "LogValueChange");
+
+                    _lastHackCollection = newHacks;
+                }
             }
 
+            private static string _lastHackCollection;
+
             public EnabledDirtyHack[] EnabledHacks
             {
                 get