Add directory support for FileTrigger (#5444)
* Add directory support for FileTrigger
* docs: Added description of UNSAFE_directory prop
* refac: Remove unsafe prefix
* Add story
* Update FileTrigger.mdx
Updated section title to match formatting of others
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Co-authored-by: Yihui Liao <44729383+yihuiliao@users.noreply.github.com>
Co-authored-by: Rob Snow <rsnow@adobe.com>
Co-authored-by: Reid Barber <reid@reidbarber.com>