The "Admin editing objects type theme setting when editing a theme
setting of objects type allows an admin to edit a theme setting of
objects type via the settings editor"
system test was flaky because of the way we were filling in content into
AceEditor. It is not a normal input and does not seem to function like a
normal input. Using Capybara's `fill_in` method was not reliable so we
will just use AceEditor's API directly to update its input.
This PR involves cleaning up the codebase from my (@keegangeorge's) todos.
In particular:
- Remove Form Template related todos (these are no longer in the roadmap)
- Remove old left-over AI summarization related code after moving to AI (https://github.com/discourse/discourse-ai/pull/658)
- Update one form template related spec
Why this change?
On the `/admin/customize/themes/<:id>` route, we allow admins to edit
all settings via a settings editor. Prior to this change, trying to edit
and save a typed objects theme settings will result in an error on the
server.
