fix: optimization: PVS-Studio warning V832

It's better to use '= default;' syntax instead of empty constructor and destructor body.
Using '= default;' can help the compiler generate more optimal code.

Reported by: PVS-Studio

Signed-off-by: Vyacheslav Ivanov <islavaivanov76@gmail.com>

src/graphics/core/Atlas.cpp

@@ -19,8 +19,7 @@ Atlas::Atlas(
     }
 }
 
-Atlas::~Atlas() {
-}
+Atlas::~Atlas() = default;
 
 void Atlas::prepare() {
     texture = Texture::from(image.get());