Allow excluding folders from search results

[Kartopod]

When opening any 'quick open' menus, it would be great if you had the ability to exclude folders to not show up in the results.
For example: Excluding the addons folder from the 'Quick open scene' and 'Quick open script' windows.

This would declutter the list and improve the UX.

Perhaps even add a toggle to show all files, in case the user wants to search through the excluded files too.

[Calinou]

godotengine/godot#56772 already handles this in 4.4 by having a toggle that excludes the addons/ folder from search results.

[Kartopod]

That's a great improvement, thank you