* Wip: First naive impl

* Chore: fix after merge

* Chore: changes after PR comments

* Chore: removes unused types

* Chore: adds feature toggle

* Refactor: adds library panels cleanup and connect when storing dashboards

* Refactor: adds feature toggle

* Update pkg/services/librarypanels/librarypanels.go

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

* Update pkg/services/librarypanels/librarypanels.go

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

* Refactor: adds disconnect library panels when deleting a dashboard

* Chore: changes after PR comments

* Tests: adds tests for LoadLibraryPanelsForDashboard

* Tests: adds tests for CleanLibraryPanelsForDashboard

* Tests: adds tests for ConnectLibraryPanelsForDashboard

* Tests: adds tests for DisconnectLibraryPanelsForDashboard and small refactor

* Update pkg/services/librarypanels/librarypanels_test.go

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

* Update pkg/services/librarypanels/librarypanels_test.go

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

* Update pkg/services/librarypanels/librarypanels_test.go

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

* Update pkg/services/librarypanels/librarypanels_test.go

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

* Refactor: deletes all connections in one call and connects all in the same transaction

* Chore: adds better comments

* Chore: changes after PR comments

Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>