Experimental "What's new?" feature feed items previously calculated
a boolean for experimentEnabled on the client based on the siteSettings
service, and this would control the initial state of the experiment
toggle.
However this requires the person who creates the site setting for the
experiment to remember to set it to `client: true`. This commit removes
that manual step by calculating whether the experiment is enabled
server-side, where we have access to all the site settings.
This version number is a technical detail that controls
what items show up on certain sites, most admins don't
need this level of detail. Remove it here, maybe we can
add it back in some hidden way later if needed.
This PR adds a small visual change to the new feature item on the `/admin/whats-new` page. When features are marked with an experimental site setting, they should show an indication on the feature item that it is "Experimental"
Bug introduced in this PR https://github.com/discourse/discourse/pull/29244
When the experiment toggle button was introduced, new features did not look right when the toggle button was not available.
In addition, the plugin name can be an empty string. In that case, information about new features should be displayed.
Toggle the button to enable the experimental site setting from "What's new" announcement.
The toggle button is displayed when:
- site setting exists and is boolean;
- potentially required plugin is enabled.
