fix warnings + cland-tidy

include/td/misc/Shapes.h

@@ -30,7 +30,7 @@ private:
 	Point m_Center;
 	float m_Width, m_Height;
 public:
-	Rectangle() {}
+	Rectangle() : m_Center(), m_Width(0), m_Height(0) {}
 
 	const Point& GetCenter() const { return m_Center; }
 	float GetCenterX() const { return m_Center.GetX(); }
@@ -92,5 +92,5 @@ public:
 };
 
 } // namespace shape
-} // namespace utils 
+} // namespace utils
 } // namespace td