rename header files from *.h to *.hpp

src/widgets/accountpopup.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <QWidget>
+
+#include <memory>
+
+namespace Ui {
+class AccountPopup;
+}
+
+namespace chatterino {
+
+class Channel;
+
+namespace widgets {
+
+class AccountPopupWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    AccountPopupWidget(std::shared_ptr<Channel> &channel);
+
+    void setName(const QString &name);
+
+private:
+    Ui::AccountPopup *_ui;
+
+    std::shared_ptr<Channel> &_channel;
+};
+
+}  // namespace widgets
+}  // namespace chatterino