Dashboards: Refactor service to make it injectable by wire (#44588)

* Add providers to folder and dashboard services

* Refactor folder and dashboard services

* Move store implementation to its own file due wire cannot allow us to cast to SQLStore

* Add store in some places and more missing dependencies

* Bad merge fix

* Remove old functions from tests and few fixes

* Fix provisioning

* Remove store from http server and some test fixes

* Test fixes

* Fix dashboard and folder tests

* Fix library tests

* Fix provisioning tests

* Fix plugins manager tests

* Fix alert and org users tests

* Refactor service package and more test fixes

* Fix dashboard_test tets

* Fix api tests

* Some lint fixes

* Fix lint

* More lint :/

* Move dashboard integration tests to dashboards service and fix dependencies

* Lint + tests

* More integration tests fixes

* Lint

* Lint again

* Fix tests again and again anda again

* Update searchstore_test

* Fix goimports

* More go imports

* More imports fixes

* Fix lint

* Move UnprovisionDashboard function into dashboard service and remove bus

* Use search service instead of bus

* Fix test

* Fix go imports

* Use nil in tests

pkg/models/dashboards.go

@@ -456,7 +456,3 @@ type GetDashboardRefByIdQuery struct {
 	Id     int64
 	Result *DashboardRef
 }
-
-type UnprovisionDashboardCommand struct {
-	Id int64
-}