This is slightly less efficient than getting the folder dicts from
"get_user_template_folders" directly, since:
- TemplateList returns both templates and folders.
- TemplateList encapsulates the dicts in model classes.
We'll compensate for this later on:
- We'll introduce a new caching approach to make the call fast.
- We'll expose a property to avoid the "if" in the comprehension.
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