Fix crash on exit while there are Lua components visible

Broken since 02b679aec3 and extremely similar to 74386631e0, which makes sure that both LSI and GameView are alive when destroying Lua windows: in this case, they both need to be alive when destroying components attached to the main window. Also, the main window has to exist still.

src/gui/game/GameController.cpp

@@ -148,6 +148,7 @@ GameController::~GameController()
 		delete *iter;
 	}
 	gameView->PauseRendererThread();
+	commandInterface->RemoveComponents();
 	gameView->CloseActiveWindow();
 	delete gameView;
 	commandInterface.reset();

src/lua/CommandInterface.h

@@ -57,6 +57,7 @@ public:
 	ValueType testType(String word);
 
 	void SetToolIndex(ByteString identifier, std::optional<int> index);
+	void RemoveComponents();
 
 	static CommandInterfacePtr Create(GameController *newGameController, GameModel *newGameModel);
 };

src/lua/LuaScriptInterface.cpp

@@ -218,6 +218,18 @@ void CommandInterface::SetToolIndex(ByteString identifier, std::optional<int> in
 	LuaTools::SetToolIndex(lsi->L, identifier, index);
 }
 
+void CommandInterface::RemoveComponents()
+{
+	auto *lsi = static_cast<LuaScriptInterface *>(this);
+	for (auto &[ component, ref ] : lsi->grabbedComponents)
+	{
+		lsi->window->RemoveComponent(component->GetComponent());
+		ref.Clear();
+		component->owner_ref = ref;
+		component->SetParentWindow(nullptr);
+	}
+}
+
 void LuaGetProperty(lua_State *L, StructProperty property, intptr_t propertyAddress)
 {
 	switch (property.Type)
@@ -731,16 +743,7 @@ String CommandInterface::FormatCommand(String command)
 		return highlight(command);
 }
 
-LuaScriptInterface::~LuaScriptInterface()
-{
-	for (auto &[ component, ref ] : grabbedComponents)
-	{
-		window->RemoveComponent(component->GetComponent());
-		ref.Clear();
-		component->owner_ref = ref;
-		component->SetParentWindow(nullptr);
-	}
-}
+LuaScriptInterface::~LuaScriptInterface() = default;
 
 void tpt_lua_pushByteString(lua_State *L, const ByteString &str)
 {

src/lua/PlainCommandInterface.cpp

@@ -41,3 +41,7 @@ String CommandInterface::FormatCommand(String command)
 void CommandInterface::SetToolIndex(ByteString identifier, std::optional<int> index)
 {
 }
+
+void CommandInterface::RemoveComponents()
+{
+}