Icon and splash screen raw files are not included in exported project

[Summersay415]

Tested versions

• Reproducible in 4.4.dev5
• Not reproducible in 4.4.dev4
  Regression from Expose path properties save UID internally if referencing a resource #97912

System information

Godot v4.4.dev7 - Arch Linux #1 SMP PREEMPT_DYNAMIC Thu, 19 Dec 2024 21:29:01 +0000 on Wayland - X11 display driver, Single-window, 1 monitor - OpenGL 3 (Compatibility) - Mesa Intel(R) Graphics (ADL GT2) - 12th Gen Intel(R) Core(TM) i5-1235U (12 threads)

Issue description

Icon and splash screen files are not included in export project due to saved as UIDs in ProjectSettings. Instead, file at path uid:/ is exported, but it is ignored by engine, so icon and splash screen doesn't work.

Steps to reproduce

1. Set custom icon and splash screen. They will be saved in ProjectSettings as UIDs.
2. Export project.
3. Run project. Notice default splash screen and icon.

Minimal reproduction project (MRP)

mrp.zip

1. Run in editor. Everything works.
2. Export and run. Icon and splash don't work.