use override in class DeckBuilder (#2664)

* update DeckBuilder::FilterCards()

* use override

gframe/deck_con.cpp

@@ -1343,13 +1343,12 @@ void DeckBuilder::FilterCards() {
 			all,
 			name,
 			setcode
-		} type;
-		bool exclude;
-		element_t(): type(type_t::all), exclude(false) {}
+		} type{ type_t::all };
+		bool exclude{ false };
 	};
 	const wchar_t* pstr = mainGame->ebCardName->getText();
 	int trycode = BufferIO::GetVal(pstr);
-	std::wstring str = std::wstring(pstr);
+	std::wstring str{ pstr };
 	std::vector<element_t> query_elements;
 	if(mainGame->gameConf.search_multiple_keywords) {
 		const wchar_t separator = mainGame->gameConf.search_multiple_keywords == 1 ? L' ' : L'+';

gframe/deck_con.h

@@ -11,7 +11,7 @@ namespace ygo {
 
 class DeckBuilder: public irr::IEventReceiver {
 public:
-	virtual bool OnEvent(const irr::SEvent& event);
+	bool OnEvent(const irr::SEvent& event) override;
 	void Initialize();
 	void Terminate();
 	void GetHoveredCard();