### Godot version

v4.0.beta13.mono.official [caacade56]

### System information

Ubuntu 22.10

### Issue description

Small issue, but according to the documentation you can set the `dof_blur_near_transition` and `dof_blur_far_transition` practical camera attributes to [negative values](https://docs.godotengine.org/en/latest/classes/class_cameraattributespractical.html#class-cameraattributespractical-property-dof-blur-far-distance), but the editor / property hints only lets you set it to 0.01 and no lower, so you have to set the value in code.

![image](https://user-images.githubusercontent.com/1330485/213751772-e423ca8a-ad24-4c4a-9ac9-fb386e10de5a.png)


### Steps to reproduce

1. Add a camera
2. Add practical camera attributes
3. Enable Near or Far DOF
4. Try to set the Transition to a negative value

### Minimal reproduction project

N/A
camera_attributes = RS::get_singleton()->camera_attributes_create();
}
CameraAttributes::~CameraAttributes() {
	ERR_FAIL_NULL(RenderingServer::get_singleton());
	RS::get_singleton()->free(camera_attributes);
}
void CameraAttributesPractical::set_dof_blur_far_enabled(bool p_enabled) {
	dof_blur_far_enabled = p_enabled;
	_update_dof_blur();
	notify_property_list_changed();
}
bool CameraAttributesPractical::is_dof_blur_far_enabled() const {
	return dof_blur_far_enabled;
}
void CameraAttributesPractical::set_dof_blur_far_distance(float p_distance) {
	dof_blur_far_distance = p_distance;
	_update_dof_blur();
}
float CameraAttributesPractical::get_dof_blur_far_distance() const {