Error when I have configured action "detail" for crud page "index" in my dashboard

[OleksiiBulba]

Hello!

I added easy-config-bundle to my project, and configured everything according to the README.md and after that, I got an error:

The "detail" action already exists in the "index" page, so you can't add it again. Instead, you can use the "updateAction()" method to update any options of an existing action.

The reason is that I've added the action "detail" to all crud pages "index" in my dashboard, and easy-config-bundle tries to add it again.

The workaround is removing it from my dashboard "configureActions" to each of my crud controllers to avoid the error.
Is it possible to fix it in your bundle?

I did a small change:

try {
    $actions->add(Crud::PAGE_INDEX, Action::DETAIL);
} catch (\InvalidArgumentException) {}

and it kinda worked. The method add throws \InvalidArgumentException only in one case, so it is a valid option, IMO.

If it is allowed, I can create an MR for it by myself.

Thanks in advance!