This commit adds a new admin UI under the route `/admin-revamp`, which is
only accessible if the user is in a group defined by the new `enable_experimental_admin_ui_groups` site setting. It
also adds a special `admin` sidebar panel that is shown instead of the `main`
forum one when the admin is in this area.
![image](https://github.com/discourse/discourse/assets/920448/fa0f25e1-e178-4d94-aa5f-472fd3efd787)
We also add an "Admin Revamp" sidebar link to the community section, which
will only appear if the user is in the setting group:
![image](https://github.com/discourse/discourse/assets/920448/ec05ca8b-5a54-442b-ba89-6af35695c104)
Within this there are subroutes defined like `/admin-revamp/config/:area`,
these areas could contain any UI imaginable, this is just laying down an
initial idea of the structure and how the sidebar will work. Sidebar links are
currently hardcoded.
Some other changes:
* Changed the `main` and `chat` panels sidebar panel keys to use exported const values for reuse
* Allowed custom sidebar sections to hide their headers with the `hideSectionHeader` option
* Add a `groupSettingArray` setting on `this.siteSettings` in JS, which accepts a group site setting name
and splits it by `|` then converts the items in the array to integers, similar to the `_map` magic for ruby
group site settings
* Adds a `hidden` option for sidebar panels which prevents them from showing in separated mode and prevents
the switch button from being shown
---------
Co-authored-by: Krzysztof Kotlarek <kotlarek.krzysztof@gmail.com>
What is this change required?
I noticed that actions in `SidebarSectionsController` resulted in
lots of N+1 queries problem and I wanted a solution to
prevent such problems without having to write N+1 queries tests. I have
also used strict loading for `SidebarSection` queries in performance
sensitive spots.
Note that in this commit, I have also set `config.active_record.action_on_strict_loading_violation = :log`
for the production environment so that we have more visibility of
potential N+1 queries problem in the logs. In development and test
environment, we're sticking with the default of raising an error.