add lock uplink button (#15994)

Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Shared/PDA/PDAMessagesUI.cs

@@ -1,49 +1,39 @@
 using Robust.Shared.Serialization;
 
-namespace Content.Shared.PDA
+namespace Content.Shared.PDA;
+
+[Serializable, NetSerializable]
+public sealed class PDAToggleFlashlightMessage : BoundUserInterfaceMessage
 {
-    [Serializable, NetSerializable]
-    public sealed class PDAToggleFlashlightMessage : BoundUserInterfaceMessage
-    {
-        public PDAToggleFlashlightMessage()
-        {
-
-        }
-    }
-
-    [Serializable, NetSerializable]
-    public sealed class PDAShowRingtoneMessage : BoundUserInterfaceMessage
-    {
-        public PDAShowRingtoneMessage()
-        {
-
-        }
-    }
-
-    [Serializable, NetSerializable]
-    public sealed class PDAShowUplinkMessage : BoundUserInterfaceMessage
-    {
-        public PDAShowUplinkMessage()
-        {
-
-        }
-    }
-
-    [Serializable, NetSerializable]
-    public sealed class PDAShowMusicMessage : BoundUserInterfaceMessage
-    {
-        public PDAShowMusicMessage()
-        {
-
-        }
-    }
-
-    [Serializable, NetSerializable]
-    public sealed class PDARequestUpdateInterfaceMessage : BoundUserInterfaceMessage
-    {
-        public PDARequestUpdateInterfaceMessage()
-        {
-
-        }
-    }
+    public PDAToggleFlashlightMessage() { }
+}
+
+[Serializable, NetSerializable]
+public sealed class PDAShowRingtoneMessage : BoundUserInterfaceMessage
+{
+    public PDAShowRingtoneMessage() { }
+}
+
+[Serializable, NetSerializable]
+public sealed class PDAShowUplinkMessage : BoundUserInterfaceMessage
+{
+    public PDAShowUplinkMessage() { }
+}
+
+[Serializable, NetSerializable]
+public sealed class PDALockUplinkMessage : BoundUserInterfaceMessage
+{
+    public PDALockUplinkMessage() { }
+}
+
+[Serializable, NetSerializable]
+public sealed class PDAShowMusicMessage : BoundUserInterfaceMessage
+{
+    public PDAShowMusicMessage() { }
+}
+
+[Serializable, NetSerializable]
+public sealed class PDARequestUpdateInterfaceMessage : BoundUserInterfaceMessage
+{
+    public PDARequestUpdateInterfaceMessage()  { }
 }