* Hook up import/status endpoint to Historical Data Import screen
* Fix PHP tests
* Add speak message when the import is complete
* Several fixes
* Cleanup
* Update progress bars every 3 seconds and bugfixes
* Rename ongoingImport to activeImport
* Use timestamp to identify queries
* Use timestamps for historical data state
* Add 'initializing' status
* Cleanup
* Pass less props around
* Refactor getStatus
* Set stop timestamp on request error
* Typo
* Update import progress during batches
* Add import status route for querying import progress
* Update import totals before import start
* Move wc admin notes to separate action scheduler group
* Add import totals route to query customer and order totals
* Add wc helper queue job processing method
* Add import status and total tests
* Separate action type clearing for imports and notes
* Typecast action types as array in clear_pending_wcadmin_actions()