Simplify Singleton in RendererUIManager

Patch/Game/scnGamePatch.cs

@@ -131,7 +131,7 @@ public static class scnGamePatch
         var isLooping = __instance.levelData.miscSettings.GetBool("loopVideo");
             
         // Initialize player. If targetTexture is null (CameraFarPlane mode), it will build a quad in front of targetCamera.
-        player.Init(videoPath, __instance.videoBG?.targetTexture, isLooping, targetCamera, __instance.videoBG.gameObject);
+        player.Init(videoPath, __instance.videoBG.targetTexture, isLooping, targetCamera, __instance.videoBG.gameObject);
 
         return false; // Skip original UpdateVideo
     }