Fixes #258 theme change doesn't apply

src/widgets/helper/channelview.cpp

@@ -114,6 +114,13 @@ ChannelView::~ChannelView()
     this->messageReplacedConnection.disconnect();
 }
 
+void ChannelView::refreshTheme()
+{
+    BaseWidget::refreshTheme();
+
+    this->layoutMessages();
+}
+
 void ChannelView::queueUpdate()
 {
     if (this->updateTimer.isActive()) {

src/widgets/helper/channelview.hpp

@@ -52,6 +52,8 @@ public:
     pajlada::Signals::NoArgSignal highlightedMessageReceived;
 
 protected:
+    virtual void refreshTheme() override;
+
     virtual void resizeEvent(QResizeEvent *) override;
 
     virtual void paintEvent(QPaintEvent *) override;