Possible TTS fix 2 (#51)

* Possible TTS fix 2

* Fix

Content.Client/Corvax/TTS/TTSSystem.cs

@@ -22,9 +22,11 @@ public sealed class TTSSystem : EntitySystem
     [Dependency] private readonly AudioSystem _audio = default!;
 
     private ISawmill _sawmill = default!;
-    private MemoryContentRoot _contentRoot = default!;
+    private static MemoryContentRoot _contentRoot = new();
     private static readonly ResPath Prefix = ResPath.Root / "TTS";
 
+    private static bool _contentRootAdded;
+
     /// <summary>
     /// Reducing the volume of the TTS when whispering. Will be converted to logarithm.
     /// </summary>
@@ -40,9 +42,13 @@ public sealed class TTSSystem : EntitySystem
 
     public override void Initialize()
     {
-        _contentRoot = new();
+        if (!_contentRootAdded)
+        {
+            _contentRootAdded = true;
+            _res.AddRoot(Prefix, _contentRoot);
+        }
+
         _sawmill = Logger.GetSawmill("tts");
-        _res.AddRoot(Prefix, _contentRoot);
         _cfg.OnValueChanged(CCCVars.TTSVolume, OnTtsVolumeChanged, true);
         SubscribeNetworkEvent<PlayTTSEvent>(OnPlayTTS);
     }
@@ -51,7 +57,6 @@ public override void Shutdown()
     {
         base.Shutdown();
         _cfg.UnsubValueChanged(CCCVars.TTSVolume, OnTtsVolumeChanged);
-        _contentRoot.Dispose();
     }
 
     public void RequestPreviewTTS(string voiceId)