Fix PDA capitalization to be PascalCase (#17335)

Content.Shared/PDA/PdaMessagesUi.cs

@@ -0,0 +1,39 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.PDA;
+
+[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 PdaLockUplinkMessage : BoundUserInterfaceMessage
+{
+    public PdaLockUplinkMessage() { }
+}
+
+[Serializable, NetSerializable]
+public sealed class PdaShowMusicMessage : BoundUserInterfaceMessage
+{
+    public PdaShowMusicMessage() { }
+}
+
+[Serializable, NetSerializable]
+public sealed class PdaRequestUpdateInterfaceMessage : BoundUserInterfaceMessage
+{
+    public PdaRequestUpdateInterfaceMessage() { }
+}