add mass-media system (#18251)

* Add Console, PDA news tab, and ringstone popup

* Add English localization

* Add mass-media console board to Advanced Entertainment resrarch

* Fix misprint

* Deleting unused libraries

* Fix round restart problem

* Fixing restart problem

* Just another fix

* Сode optimization

* Code optimization

Content.Shared/MassMedia/Systems/SharedNewsSystem.cs

@@ -0,0 +1,9 @@
+namespace Content.Shared.MassMedia.Systems;
+
+[Serializable]
+public struct NewsArticle
+{
+    public string Name;
+    public string Content;
+    public TimeSpan ShareTime;
+}