debug: add lint for zero sized items

src/window/CMakeLists.txt

@@ -22,6 +22,8 @@ target_link_libraries(quickshell-window PRIVATE
 	Qt::Core Qt::Gui Qt::Quick Qt6::QuickPrivate
 )
 
+qs_add_link_dependencies(quickshell-window quickshell-debug)
+
 target_link_libraries(quickshell-window-init PRIVATE Qt::Qml)
 
 qs_module_pch(quickshell-window SET large)

src/window/proxywindow.cpp

@@ -19,6 +19,7 @@
 #include "../core/qmlscreen.hpp"
 #include "../core/region.hpp"
 #include "../core/reload.hpp"
+#include "../debug/lint.hpp"
 #include "windowinterface.hpp"
 
 ProxyWindowBase::ProxyWindowBase(QObject* parent)
@@ -214,6 +215,11 @@ void ProxyWindowBase::polishItems() {
 	// This hack manually polishes the item tree right before showing the window so it will
 	// always be created with the correct size.
 	QQuickWindowPrivate::get(this->window)->polishItems();
+
+	if (!this->ranLints) {
+		qs::debug::lintItemTree(this->mContentItem);
+		this->ranLints = true;
+	}
 }
 
 qint32 ProxyWindowBase::x() const {

src/window/proxywindow.hpp

@@ -130,6 +130,7 @@ protected:
 	QQuickWindow* window = nullptr;
 	QQuickItem* mContentItem = nullptr;
 	bool reloadComplete = false;
+	bool ranLints = false;
 
 private:
 	void polishItems();