fix: fix scopes of created QQmlComponents

Using the scope of the component itself makes sure things availible in
its scope are usable, instead of the parent scope.

src/core/rootwrapper.cpp

@@ -2,6 +2,7 @@
 #include <cstdlib>
 #include <utility>
 
+#include <qcoreapplication.h>
 #include <qdir.h>
 #include <qfileinfo.h>
 #include <qlogging.h>
@@ -21,6 +22,10 @@ RootWrapper::RootWrapper(QString rootPath)
     , rootPath(std::move(rootPath))
     , engine(this)
     , originalWorkingDirectory(QDir::current().absolutePath()) {
+	auto* app = QCoreApplication::instance();
+	QObject::connect(&this->engine, &QQmlEngine::quit, app, &QCoreApplication::quit);
+	QObject::connect(&this->engine, &QQmlEngine::exit, app, &QCoreApplication::exit);
+
 	this->reloadGraph(true);
 
 	if (this->root == nullptr) {

src/core/variants.cpp

@@ -95,7 +95,7 @@ void Variants::updateVariants() {
 
 			auto* instance = this->mComponent->createWithInitialProperties(
 			    variant,
-			    QQmlEngine::contextForObject(this)
+			    QQmlEngine::contextForObject(this->mComponent)
 			);
 
 			if (instance == nullptr) {

src/io/socket.cpp

@@ -177,7 +177,7 @@ void SocketServer::disableServer() {
 
 void SocketServer::onNewConnection() {
 	if (auto* connection = this->server->nextPendingConnection()) {
-		auto* instanceObj = this->mHandler->create(QQmlEngine::contextForObject(this));
+		auto* instanceObj = this->mHandler->create(QQmlEngine::contextForObject(this->mHandler));
 		auto* instance = qobject_cast<Socket*>(instanceObj);
 
 		if (instance == nullptr) {

src/wayland/session_lock.cpp

@@ -73,7 +73,8 @@ void SessionLock::updateSurfaces(SessionLock* old) {
 
 		for (auto* screen: screens) {
 			if (!this->surfaces.contains(screen)) {
-				auto* instanceObj = this->mSurfaceComponent->create(QQmlEngine::contextForObject(this));
+				auto* instanceObj =
+				    this->mSurfaceComponent->create(QQmlEngine::contextForObject(this->mSurfaceComponent));
 				auto* instance = qobject_cast<SessionLockSurface*>(instanceObj);
 
 				if (instance == nullptr) {