Add extra context to messages that are added to channels, allowing the logging controller to take more responsibility in what messages to log (#5499)

Co-auhtored-by: James Upjohn <jupjohn@jammeh.co.nz>

src/controllers/commands/builtin/chatterino/Debugging.cpp

@@ -90,7 +90,7 @@ QString listEnvironmentVariables(const CommandContext &ctx)
         builder.emplace<TimestampElement>(QTime::currentTime());
         builder.emplace<TextElement>(str, MessageElementFlag::Text,
                                      MessageColor::System);
-        channel->addMessage(builder.release());
+        channel->addMessage(builder.release(), MessageContext::Original);
     }
     return "";
 }