Optional function to execute on done form

[mateusdalmeida]

At the end of filling in the card data I send them to the backend of my project, I have a button that makes this submit, in my use case it is interesting for the submit to happen at the end of the form, I believe that for other people too.

[DhavalRKansara]

@mateusdalmeida This branch is having conflicts with the latest release, can you please take upstream of the latest changes, fix the conflict and update the PR so we can review it?

[kavantrivedi]

Hey @mateusdalmeida
We appreciate your contribution to this package.
Gentle Reminder for Updating this PR with the latest release, fix the conflicts, and update the PR so we can review it.
as this PR is open for a long time, so we need to merge as soon as possible.

[kavantrivedi]

@mateusdalmeida
We are closing this PR as there is no update from your side.
So, we will create a new PR with these changes.

[ShwetaChauhan18]

@mateusdalmeida : We appreciate your contribution to this package.

We are going to cherry pick your code and merge in this repository.