quick check with linters

src/frontend/hud.cpp

@@ -416,7 +416,7 @@ void Hud::add(HudElement element) {
     elements.push_back(element);
 }
 
-void Hud::onRemove(HudElement& element) {
+void Hud::onRemove(const HudElement& element) {
     auto document = element.getDocument();
     if (document) {
         Inventory* inventory = nullptr;

src/frontend/hud.hpp

@@ -162,7 +162,7 @@ public:
     void openPermanent(UiDocument* doc);
 
     void add(HudElement element);
-    void onRemove(HudElement& element);
+    void onRemove(const HudElement& element);
     void remove(std::shared_ptr<gui::UINode> node);
 
     Player* getPlayer() const;

src/frontend/screens/LevelScreen.cpp

@@ -38,7 +38,7 @@ LevelScreen::LevelScreen(Engine* engine, Level* level) : Screen(engine) {
     worldRenderer = std::make_unique<WorldRenderer>(engine, frontend.get(), controller->getPlayer());
     hud = std::make_unique<Hud>(engine, frontend.get(), controller->getPlayer());
     
-    keepAlive(settings.graphics.backlight.observe([=](bool flag) {
+    keepAlive(settings.graphics.backlight.observe([=](bool) {
         controller->getLevel()->chunks->saveAndClear();
     }));
     keepAlive(settings.camera.fov.observe([=](double value) {
@@ -137,7 +137,7 @@ void LevelScreen::update(float delta) {
     hud->update(hudVisible);
 }
 
-void LevelScreen::draw(float delta) {
+void LevelScreen::draw(float) {
     auto camera = controller->getPlayer()->currentCamera;
 
     Viewport viewport(Window::width, Window::height);