Alerting: Allow alert rule pausing from API (#62326)

* Add is_paused attr to the POST alert rule group endpoint

* Add is_paused to alerting API POST alert rule group

* Fixed tests

* Add is_paused to alerting gettable endpoints

* Fix integration tests

* Alerting: allow to pause existing rules (#62401)

* Display Pause Rule switch in Editing Rule form

* add isPaused property to form interface and dto

* map isPaused prop with is_paused value from DTO

Also update test snapshots

* Append '(Paused)' text on alert list state column when appropriate

* Change Switch styles according to discussion with UX

Also adding a tooltip with info what this means

* Adjust styles

* Fix alignment and isPaused type definition

Co-authored-by: gillesdemey <gilles.de.mey@gmail.com>

* Fix test

* Fix test

* Fix RuleList test

---------

Co-authored-by: gillesdemey <gilles.de.mey@gmail.com>

* wip

* Fix tests and add comments to clarify AlertRuleWithOptionals

* Fix one more test

* Fix tests

* Fix typo in comment

* Fix alert rule(s) cannot be paused via API

* Add integration tests for alerting api pausing flow

* Remove duplicated integration test

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Co-authored-by: Virginia Cepeda <virginia.cepeda@grafana.com>
Co-authored-by: gillesdemey <gilles.de.mey@gmail.com>
Co-authored-by: George Robinson <george.robinson@grafana.com>

pkg/tests/api/alerting/testing.go

@@ -160,6 +160,7 @@ func convertGettableGrafanaRuleToPostable(gettable *apimodels.GettableGrafanaRul
 		UID:          gettable.UID,
 		NoDataState:  gettable.NoDataState,
 		ExecErrState: gettable.ExecErrState,
+		IsPaused:     &gettable.IsPaused,
 	}
 }