* Add empty config.php and tracker.php files to each plugin that doesn't have them; add to whitelist of files that are included in new plugins generated by generate:plugin
* Add plugin files for plugins which were missing them
(#13446)
* Use postMessage instead of directly making API calls in the overlay iframe.
* Make sure it will work when Matomo is on a subfolder.
* Increase overlay security with domain and method whitelists.
* Try to fix UI test.
* Fix tests + UI test blacklist check.
* broadcast.getValuesFromUrl does not decode URL params.