postgres: use net/url to generate postgres connection url

postgres+mysql: add optional fill parameter to $__timeGroup macro to fill in missing values in series

Fixes #11016

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>

Add permission check for dashboard diff api route

* Fix Github OAuth not working with private organizations

* Update documentation

Only allow override permissions that is higher

Did a bad pointer comparison so extended the tests for duplicate permissions.

ref #10770

grammar fix, add dir, and remove redundant info

Using a mocked guardian instead and relies on the actual guardian tests for verifying
permission handling correctness

If a dashboard inherits permissions from a folder, don't allow same permission to be added
to the dashboard with a lower permission.
Add backend validation so that you cannot add same permission to folder/dashboard, for example
same user/team with different permissions

* Alerting: Fix OK state doesn't show up in Microsoft Teams

* Fix formatting

fix: changed react-grid-layout to use grafana fork to a commit before https://github.com/STRML/react-grid-layout/commit/15503084fb7b0af826427c8c0706901e5745a39f, this fixes all the panel movement bugs, fixes #10831

[doc] Fix extra alerting options in installation->configuration