This ensures that settings like `gui/theme/custom_font` handle resource
remappings properly, as they load resources in `register_scene_types()`.
Path remaps used to be done before loading scene types in early Godot
versions (as hinted by the "Load Remaps" comment just before "Load Scene
Types") but this was broken when developing new localization features.
Fixes#17640.
(cherry picked from commit bb5dcb6892)