Hackable intercoms (#23984)

* Enable wire interface for intercom

* Implement BlockListening component and system

* Implement ListenWireAction

* Added cooldown/overload to mic wire pulse

* Properly persist voicemask settings when user already has one.

* Addressed requested changes

* Added wire panel open/closed visuals

Content.Server/Chat/Systems/ChatSystem.cs

@@ -847,6 +847,16 @@ public sealed partial class ChatSystem : SharedChatSystem
         return modifiedMessage.ToString();
     }
 
+    public string BuildGibberishString(IReadOnlyList<char> charOptions, int length)
+    {
+        var sb = new StringBuilder();
+        for (var i = 0; i < length; i++)
+        {
+            sb.Append(_random.Pick(charOptions));
+        }
+        return sb.ToString();
+    }
+
     #endregion
 }