* Revert "Revert "Update to new Snackbar component and notice store""
* Update uploader component to use createNotice
* Bump required WP version to 5.2
* Update required PHP and WP versions in plugin header
* Add new wordpress/components version and fix dependencies
* Add in snackbar styling and gutenberg variables
* Convert all existing notice actions to wordpress/notices
* Fix linting errors
* Add package.lock changes
* Update search list control snapshots with new attributes
* Simplify Header rendering, remove the use of react-slot-fill
* Remove the useless "/analytics" route
* Move all the <Header> renders to the new, declarative way of specifying breadcrumbs
* Re-render the Layout when a report is added using the REPORTS_FILTER, since that affects the breadcrumbs output
* Fix the base breadcrumb link and breadcrumbs on embedded pages
* Expanded Layout.propTypes to specify the breadcrumbs' shape
* Add section header for historical import.
* Add alert on unsaved changes.
* The glass is half full. Therefore my state change should be too.
* Update button text.
I figured there's no reason you couldn't sort by the location data just so you can group them together (ex. quickly see how many are from a specific state at a glance rather than having it spread out & not having a means to group them together from this view.)
* 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
* Hook up import/totals endpoint to Historical Data Import screen
* Remove getImportTotalsError and isGetImportTotalsRequesting selectors which were not used
* Remove duplicate style import
* Fix RTL displays
* Add customer functions to order and refund classes
* Use parent order for refund order number
* Add renderCurrency method to format negative currencies
* Allow negative number of items for refund fields in database
* Hide progress bars and status from Import Historical Data screen
* Remove Rebuild Reports Sections from Settings
* Add Delete Imported Data button to the default actions
* Unify @todo comments
* Add customer functions to order and refund classes
* Extract shared order and refund methods to trait
* Add refund filter to advanced filters in orders report
* Filter refund types in orders data store
* Extract refunds subquery to parent report data store method
* Add refund subquery filtering to order stats data store
* Add tests around refund type filtering
* Change the default option for the refunds filter