Consistency in parsing

DiscordChatExporter.Core/Discord/Data/Embeds/Embed.cs

@@ -45,7 +45,7 @@ public partial record Embed
             EmbedKind.Rich;
 
         var url = json.GetPropertyOrNull("url")?.GetNonWhiteSpaceStringOrNull();
-        var timestamp = json.GetPropertyOrNull("timestamp")?.GetDateTimeOffset();
+        var timestamp = json.GetPropertyOrNull("timestamp")?.GetDateTimeOffsetOrNull();
 
         var color = json
             .GetPropertyOrNull("color")?

DiscordChatExporter.Core/Discord/Data/Message.cs

@@ -108,15 +108,16 @@ public partial record Message
     {
         var id = json.GetProperty("id").GetNonWhiteSpaceString().Pipe(Snowflake.Parse);
         var kind = (MessageKind)json.GetProperty("type").GetInt32();
-        var flags = (MessageFlags?)json.GetPropertyOrNull("flags")?.GetInt32() ?? MessageFlags.None;
+        var flags = (MessageFlags?)json.GetPropertyOrNull("flags")?.GetInt32OrNull() ?? MessageFlags.None;
         var author = json.GetProperty("author").Pipe(User.Parse);
 
         var timestamp = json.GetProperty("timestamp").GetDateTimeOffset();
-        var editedTimestamp = json.GetPropertyOrNull("edited_timestamp")?.GetDateTimeOffset();
+        var editedTimestamp = json.GetPropertyOrNull("edited_timestamp")?.GetDateTimeOffsetOrNull();
+
         var callEndedTimestamp = json
             .GetPropertyOrNull("call")?
             .GetPropertyOrNull("ended_timestamp")?
-            .GetDateTimeOffset();
+            .GetDateTimeOffsetOrNull();
 
         var isPinned = json.GetPropertyOrNull("pinned")?.GetBooleanOrNull() ?? false;
         var content = json.GetPropertyOrNull("content")?.GetStringOrNull() ?? "";

DiscordChatExporter.Core/Discord/Data/Role.cs

@@ -17,7 +17,7 @@ public record Role(Snowflake Id, string Name, int Position, Color? Color) : IHas
 
         var color = json
             .GetPropertyOrNull("color")?
-            .GetInt32()
+            .GetInt32OrNull()?
             .Pipe(System.Drawing.Color.FromArgb)
             .ResetAlpha()
             .NullIf(c => c.ToRgb() <= 0);