Specify that `get_contact_local_normal` is in global space

**Your Godot version:** 4.3

**Issue description:**
In the documentation of the `PhysicsDirectBodyState3D`, could it be possible to specify that the [get_contact_local_normal](https://docs.godotengine.org/en/stable/classes/class_physicsdirectbodystate3d.html#class-physicsdirectbodystate3d-method-get-contact-local-normal) method returns the normal in global space ? I wasted some time thinking "Oh there is local in the name, then it should returns the normal in local space", until I got some problem with the results, and also read the [get_contact_local_position](https://docs.godotengine.org/en/stable/classes/class_physicsdirectbodystate3d.html#class-physicsdirectbodystate3d-method-get-contact-local-position) doc which specify it is in global coordinate
It could be updated for `PhysicsDirectBodyState2D` too I suppose.

**URL to the documentation page :**
https://docs.godotengine.org/en/stable/classes/class_physicsdirectbodystate3d.html