Summary:
Adding a new method `setCursorPos` in the widget API, and a new configuration option for the ready message `allowSelectBy` that exposes custom widgets in the `Select by` dropdown.
With this, a custom widget can control the position of the linked widgets and is able to change the column in the creator panel.
Test Plan: Added new test. Existing tests should pass.
Reviewers: JakubSerafin
Reviewed By: JakubSerafin
Subscribers: JakubSerafin
Differential Revision: https://phab.getgrist.com/D3993
A small test harness bundle was recently added that is breaking the docker image build. It could be added to the docker image, but that would introduce a bunch of extraneous test file dependencies. So this tweaks the build to simply skip the test bundle if its primary source file is not found.
Also added some other test fixes along the way:
* make a custom widget test more reliable
* update a localization test now that `pt` exists
* store more log info in artifact on error