* variable index header and deletion hook
* Some visual improvements to edit header and back button
* Mirage fixtures for variables
* Deletion flow test
* Account for disabled state of add-more button
* Transition destination changes after design chat
* Simplified parent folder path by adding to variable model
* Lint cleanup
* test update to reflect path redirect on delete
* No longer have to re-traverse to a deleted var folder after deletion, tests updated
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