* Fixed incorrect generic deleted notification text
* Added custom "event_source" header for json notifs
* Added internal reference data to event notifs
* Added event listeners to shopping list items
* Fixed type issues
* moved JSON event source k:v pairs to message body
* added hook for all supported custom endpoints
fixed bug that excluded non-custom notification types
* created event_source class to replace loosely-typed dict
* fixed silent error when dispatching a null task
* moved url updates to static function
* added unit tests for event_source url manipulation
* removed array from event bus (it's unsupported)
* fix group page
* setup group notification for backend
* update type generators
* script to auto-generate schema exports
* setup frontend CRUD interface
* remove old notifications UI
* drop old events api
* add test functionality
* update naming for fields
* add event dispatcher functionality
* bump to python 3.10
* bump python version
* purge old event code
* use-async apprise
* set mealie logo as image
* unify styles for buttons rows
* add links to banners
