Make ModBadgeElement a descendant of BadgeElement instead of EmoteElement (#1602)

this causes it to behave as it should, and not be scaled when emotes are
scaled. :)

src/messages/MessageElement.hpp

@@ -223,17 +223,6 @@ private:
     EmotePtr emote_;
 };
 
-// Behaves like an emote element, except it creates a different image layout element that draws the mod badge background
-class ModBadgeElement : public EmoteElement
-{
-public:
-    ModBadgeElement(const EmotePtr &data, MessageElementFlags flags_);
-
-protected:
-    MessageLayoutElement *makeImageLayoutElement(const ImagePtr &image,
-                                                 const QSize &size) override;
-};
-
 class BadgeElement : public MessageElement
 {
 public:
@@ -244,10 +233,24 @@ public:
 
     EmotePtr getEmote() const;
 
+protected:
+    virtual MessageLayoutElement *makeImageLayoutElement(const ImagePtr &image,
+                                                         const QSize &size);
+
 private:
     EmotePtr emote_;
 };
 
+class ModBadgeElement : public BadgeElement
+{
+public:
+    ModBadgeElement(const EmotePtr &data, MessageElementFlags flags_);
+
+protected:
+    MessageLayoutElement *makeImageLayoutElement(const ImagePtr &image,
+                                                 const QSize &size) override;
+};
+
 // contains a text, formated depending on the preferences
 class TimestampElement : public MessageElement
 {