Replace "alt" with "opt" for macOS shortcuts

Author: skyace65

contributing/documentation/docs_writing_guidelines.rst

@@ -502,6 +502,6 @@ On macOS, ``Cmd`` often replaces ``Ctrl`` in keyboard shortcuts.
 Try to integrate the shortcut into sentences the best you can. Here are some
 examples with the ``:kbd:`` tag left as-is for better visibility:
 
-- Press ``:kbd:`Ctrl + Alt + T``` to toggle the panel (``:kbd:`Cmd + Alt + T``` on macOS).
+- Press ``:kbd:`Ctrl + Alt + T``` to toggle the panel (``:kbd:`Cmd + Opt + T``` on macOS).
 - Press ``:kbd:`Space``` and hold the left mouse button to pan in the 2D editor.
 - Press ``:kbd:`Shift + Up Arrow``` to move the node upwards by 8 pixels.

getting_started/first_3d_game/04.mob_scene.rst

@@ -219,7 +219,7 @@ We still have to destroy the mobs when they leave the screen. To do so, we'll
 connect our :ref:`VisibleOnScreenNotifier3D <class_VisibleOnScreenNotifier3D>` node's ``screen_exited`` signal to the ``Mob``.
 
 Head back to the 3D viewport by clicking on the *3D* label at the top of the
-editor. You can also press :kbd:`Ctrl + F2` (:kbd:`Alt + 2` on macOS).
+editor. You can also press :kbd:`Ctrl + F2` (:kbd:`Opt + 2` on macOS).
 
 |image8|
 

getting_started/introduction/first_look_at_the_editor.rst

@@ -136,7 +136,7 @@ Godot comes with a built-in class reference.
 You can search for information about a class, method, property, constant, or
 signal by any one of the following methods:
 
-* Pressing :kbd:`F1` (or :kbd:`Alt + Space` on macOS, or :kbd:`fn + F1` for laptops with a :kbd:`fn` key) anywhere in the editor.
+* Pressing :kbd:`F1` (or :kbd:`Opt + Space` on macOS, or :kbd:`fn + F1` for laptops with a :kbd:`fn` key) anywhere in the editor.
 * Clicking the "Search Help" button in the top-right of the Script main screen.
 * Clicking on the Help menu and Search Help.
 * Clicking while pressing the :kbd:`Ctrl` key on a class name, function name,