message: WindowSize: adds operator== and operator!=
diff: @@ -20,4 +20,14 @@ struct [[nodiscard]] WindowSize {
  unsigned int rows;
  };
  +constexpr bool operator==(WindowSize const& _a, WindowSize const& _b) noexcept
  +{
  + return _a.columns == _b.columns && _a.rows == _b.rows;
  +}
  +
  +constexpr bool operator!=(WindowSize const& _a, WindowSize const& _b) noexcept
  +{
  + return !(_a == _b);
  +}
  +
  }
  