Update API for TypingState

MareSynchronosAPI/Dto/SystemInfoDto.cs

@@ -6,4 +6,5 @@ namespace MareSynchronos.API.Dto;
 public record SystemInfoDto
 {
     public int OnlineUsers { get; set; }
-}
+    public bool SupportsTypingState { get; set; }
+}

MareSynchronosAPI/Dto/User/TypingStateDto.cs

@@ -1,5 +1,11 @@
 using MareSynchronos.API.Data;
+using MessagePack;
 
 namespace MareSynchronos.API.Dto.User;
 
-public record TypingStateDto(UserData User, bool IsTyping);
+[MessagePackObject(keyAsPropertyName: true)]
+public record TypingStateDto(UserData User, bool IsTyping)
+{
+    public UserData User { get; set; } = User;
+    public bool IsTyping { get; set; } = IsTyping;
+}