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/window/input.hpp

@@ -142,7 +142,7 @@ struct Binding {
     bool state = false;
     bool justChange = false;
     
-    Binding(){}
+    Binding() = default;
     Binding(inputtype type, int code) : type(type), code(code) {}
 
     bool active() const {