Replaced all instances of "hard drive" with "local storage" (#7287)

Author: AV77

getting_started/step_by_step/nodes_and_scenes.rst

@@ -59,7 +59,7 @@ you or a player runs the game.
 On top of acting like nodes, scenes have the following characteristics:
 
 1. They always have one root node, like the "Character" in our example.
-2. You can save them to your hard drive and load them later.
+2. You can save them to your local drive and load them later.
 3. You can create as many instances of a scene as you'd like. You could have
    five or ten characters in your game, created from your Character scene.
 

tutorials/scripting/nodes_and_scene_instances.rst

@@ -181,7 +181,7 @@ Scenes are templates from which you can create as many reproductions as you'd
 like. This operation is called instancing, and doing it from code happens in two
 steps:
 
-1. Loading the scene from the hard drive.
+1. Loading the scene from the local drive.
 2. Creating an instance of the loaded :ref:`PackedScene <class_PackedScene>`
    resource.