Remove Unnecessary Includes in Headers (#4275)

* refactor: remove unnecessary includes in headers

* fix: formatting

* chore: changelog

* fix: scrollbar

* fix: suggestions and old appbase remains

* fix: suggestion

* fix: missing Qt forward declarations

* fix: another qt include

* fix: includes for precompiled-headers=off

* Add missing `<memory>` includes

* Add missing `#pragma once`

* Fix tests

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

src/widgets/settingspages/ModerationPage.cpp

@@ -1,25 +1,22 @@
 #include "ModerationPage.hpp"
 
 #include "Application.hpp"
+#include "controllers/moderationactions/ModerationAction.hpp"
 #include "controllers/moderationactions/ModerationActionModel.hpp"
 #include "singletons/Logging.hpp"
 #include "singletons/Paths.hpp"
+#include "singletons/Settings.hpp"
 #include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/helper/EditableModelView.hpp"
 
 #include <QFileDialog>
-#include <QFormLayout>
-#include <QGroupBox>
 #include <QHBoxLayout>
 #include <QHeaderView>
 #include <QLabel>
-#include <QListView>
 #include <QPushButton>
 #include <QTableView>
 #include <QtConcurrent/QtConcurrent>
-#include <QTextEdit>
-#include <QVBoxLayout>
 
 namespace chatterino {