Make InterfaceScriptInfos nullable

Src/GBX.NET/Engines/Game/CGameCtnReplayRecord.cs

@@ -116,7 +116,7 @@ public CGameCtnChallenge? Challenge
     public ImmutableList<CGameCtnMediaBlockScenery.Key>? SceneryVortexKeys { get; private set; }
     public int SceneryCapturableCount { get; private set; }
     public string? PlaygroundScript { get; private set; }
-    public ImmutableArray<InterfaceScriptInfo> InterfaceScriptInfos { get; private set; }
+    public ImmutableArray<InterfaceScriptInfo>? InterfaceScriptInfos { get; private set; }
 
     /// <summary>
     /// Inputs (keyboard, pad, wheel) of the replay from TM1.0, TMO, Sunrise and ESWC. For inputs stored in TMU, TMUF, TMTurbo and TM2: see <see cref="CGameCtnGhost.Inputs"/> in <see cref="Ghosts"/>. TM2020 and Shootmania inputs are available in <see cref="Ghosts"/> in <see cref="CGameCtnGhost.PlayerInputs"/>. Can be null if <see cref="EventsDuration"/> is 0, which can happen when you save the replay in editor.