* Group alertmangaer alerts by custom grouping
* Filter am groups
* Style filter components
* Style filter bar and add clear functionality
* rename components to alert group
* use query params for group filters
* filter style improvements
* add tests for group by
* Add grouping banner to better highlight groupings
* clean up hook logic
* Add filter parsing to rule list filters
* Add unit tests for label parsing
* Make label operators an enum
* add example for parsing function
* Update labels operator regex
* Use tooltip for query syntax example
* refactor to use Matchers for filtering
* wip: initial alertmanager notifications panel
* Panel for alertmanager notificaitons
* add filtering for notifications list
* remove icon
* rename am notifications to alert groups
* naming fixes
* Feature toggle
* Add toggle for expand all
* add pluralize
* add action buttons
* test work in progress
* Tests for alert groups panel
* Add useEffect for expandAll prop change
* Set panel to alpha state
* Fix colors
* fix polling interval callback
Co-authored-by: Domas <domas.lapinskas@grafana.com>
Co-authored-by: Domas <domas.lapinskas@grafana.com>