Support submit errors and error message upon submitting a form

[s8n11c]

No description provided.

[logaretm]

Perfect, but let's change the approach.

Ideally those should live in the form and not the individual fields since submit errors won't exist unless the field is part of a form. It also would allow querying those errors on the form-level which might be desired.

So I imagine building the submit errors as a similar state to the errors we already have on the form and fields just expose them via a computed property. There is still the weird case of the search field but let's tackle that later.

Let's add tests and a changeset and this would be good to go!

[changeset-bot]

🦋 Changeset detected

Latest commit: 205c43e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@formwerk/core	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[logaretm]

Very minor changes to comments for the doc generation.

[pkg-pr-new]

Open in Stackblitz

npm i https://pkg.pr.new/formwerkjs/formwerk/@formwerk/core@89

commit: 205c43e