Fixes the previous "Disabled message" behaviour

Fixes #295

src/messages/layouts/messagelayout.cpp

@@ -152,7 +152,7 @@ void MessageLayout::paint(QPainter &painter, int y, int messageIndex, Selection
     //    painter.drawPixmap(0, y, this->container.width, this->container.getHeight(), *pixmap);
 
     // draw disabled
-    if (this->message->flags & Message::Disabled) {
+    if (this->message->flags.HasFlag(Message::Disabled)) {
         painter.fillRect(0, y, pixmap->width(), pixmap->height(), themeManager.messages.disabled);
     }
 

src/messages/message.hpp

@@ -12,6 +12,7 @@
 
 namespace chatterino {
 namespace messages {
+
 struct Message {
     enum MessageFlags : uint16_t {
         None = 0,
@@ -53,6 +54,7 @@ public:
                                                          const QString &reason, bool multipleTimes);
 };
 
-typedef std::shared_ptr<Message> MessagePtr;
+using MessagePtr = std::shared_ptr<Message>;
+
 }  // namespace messages
 }  // namespace chatterino