Update Project Folder Structure to use AYON template keys

[MustafaJafar]

Is there an existing issue for this?

• I have searched the existing issues.

Please describe the feature you have in mind and explain what the current shortcomings are?

It seems that the current default value __project_root__ was adopted from early days before AYON.

ayon-core/client/ayon_core/pipeline/project_folders.py

Lines 28 to 29 in ab2ef42

	# backward compatibility
	if "__project_root__" in path_items:

Currently this token is just replaced by

"{root[work]}": {
        "{project[name]}":

How would you imagine the implementation of the feature?

The default setting should reflect the AYON related tokens not old ones.

Are there any labels you wish to add?

• I have added the relevant labels to the enhancement request.

Describe alternatives you've considered:

No response

Additional context:

No response