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/providers/irc/IrcChannel2.cpp

@@ -17,6 +17,16 @@ IrcChannel::IrcChannel(const QString &name, IrcServer *server)
     , ChannelChatters(*static_cast<Channel *>(this))
     , server_(server)
 {
+    auto *ircServer = this->server();
+    if (ircServer != nullptr)
+    {
+        this->platform_ =
+            QString("irc-%1").arg(ircServer->userFriendlyIdentifier());
+    }
+    else
+    {
+        this->platform_ = "irc-unknown";
+    }
 }
 
 void IrcChannel::sendMessage(const QString &message)
@@ -70,7 +80,7 @@ void IrcChannel::sendMessage(const QString &message)
             builder.message().messageText = message;
             builder.message().searchText = username + ": " + message;
 
-            this->addMessage(builder.release());
+            this->addMessage(builder.release(), MessageContext::Original);
         }
         else
         {
@@ -79,7 +89,7 @@ void IrcChannel::sendMessage(const QString &message)
     }
 }
 
-IrcServer *IrcChannel::server()
+IrcServer *IrcChannel::server() const
 {
     assertInGuiThread();