* replace usage of folder guardians with access control evaluators
* remove NewByFolderUID guardian
* bring up to date
* fix test
* more test fixes, and don't fetch the folder before evaluating lib element access
* change what error is returned
* fix alerting test
* try to fix linter errors
* replace the use of newByFolder guardian with direct access control evaluator checks
* remove newByFolder guardian
* get rid of dashboard and folder guardians
* undo unwanted change
* undo unwanted change
* undo unwanted change
* update code owners
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