fixed popup windows not having the right channel and the application

exiting when you close a popup

src/widgets/split.cpp

@@ -314,7 +314,7 @@ void Split::doPopup()
     Split *split =
         new Split(static_cast<SplitContainer *>(window.getNotebook().getOrAddSelectedPage()));
 
-    split->setChannel(this->getChannel());
+    split->setChannel(this->getIndirectChannel());
     window.getNotebook().getOrAddSelectedPage()->addToLayout(split);
 
     window.show();

src/widgets/window.cpp

@@ -164,8 +164,10 @@ void Window::closeEvent(QCloseEvent *event)
 
     this->closed.invoke();
 
+    if (this->type == Window::Main) {
         QApplication::exit();
     }
+}
 
 }  // namespace widgets
 }  // namespace chatterino