Update the syntax highlighter for GDScript to include new keywords #6381
Description
Godot 4.0 Docs
With the addition of new annotations like @export_group and @export_subgroup the highlighter needs to be updated to include all new keywords.
It could also be extended with build-in class names that are already in use but not highlighted, like "Button".
(oh and NodePath is listed twice :P)
Example of build-in classes not highlighted:
https://docs.godotengine.org/en/latest/tutorials/scripting/gdscript/gdscript_exports.html