fix problem with TimedModifier using RPC on every client, despite being replicated

MiraAPI/Modifiers/BaseModifier.cs

@@ -10,6 +10,11 @@ public abstract class BaseModifier
     /// </summary>
     public PlayerControl? Player { get; internal set; }
 
+    /// <summary>
+    /// Gets the modifier component that the modifier is attached to.
+    /// </summary>
+    public ModifierComponent? ModifierComponent { get; internal set; }
+
     /// <summary>
     /// Gets the modifier id.
     /// </summary>