Fix item action guide

[krns]

No description provided.

[krns]

The confirm function is mandatory.

[krns]

We could omit the confirm_label and cancel_label

[Flo0807]

The confirm/1 function determines whether a confirmation modal is shown to the user. We can decide to add the confirm/1, confirm_label/1 and cancel_label/1 functions (a modal is shown) or remove them (no modal is shown) 🤔.

If we add the confirm/1 function as suggested, we must also keep confirm_label/1 and cancel_label/1.

[krns]

The current example in the documentation makes no sense (confirm_label/1 and cancel_label/1 without modal).

If we add the confirm/1 function as suggested, we must also keep confirm_label/1 and cancel_label/1.

Thats not right. When omitted the default values ("Cancel" and "Apply") are used.

[Flo0807]

I did not see the default implementation 🙃

[Flo0807]

Currently, the item action confirmation dialog is enabled when the list of fields is empty or the confirm/1 function is exported (see has_modal?/1).

From our docs:

To enable the confirmation dialog you need to implement the confirm_label/1 function

This doesn't seem right and has to be updated.

Moreover, we should update the has_modal?/1 function because you always need the confirm/1 function if there is a list of fields.

@krns