This PR is handles the changes required to support envelopes. The new
envelope editor/signing page will be hidden during release.
The core changes here is to migrate the documents and templates model to
a centralized envelopes model.
Even though Documents and Templates are removed, from the user
perspective they will still exist as we remap envelopes to documents and
templates.
Use the `select_account` prompt for SSO OIDC to avoid constantly asking
for credentials to be entered with a client has an existing session with
the SSO provider.
Improve the email sent to invite a user to approve/sign/assist/view a
document.
The current links "Reject Document" / "Sign Document" confuse some users
as they think the document will be rejected/signed just by clicking on
these buttons.
This change makes it more clear that they will have a chance to view the
document before they can reject/sign.
The checkboxes were difficult to see and the "Send reminder" button
wasn't disabled when no recipients were selected. This PR disables the
sending button when there's no selected recipient and improves the
checkboxes visibility.
Allow organisations to manage an SSO OIDC compliant portal. This method
is intended to streamline the onboarding process and paves the way to
allow organisations to manage their members in a more strict way.
When sending a document for signing, emails for recipients are sent
before the document status is updated.
In this case, the job "send.signing.requested.email" fails because it
cannot find the document with a PENDING status.
On larger documents we could accidentally start trying to render fields
while not all pages of the PDF have loaded due to us checking for a
single page existing. This would cause an error to be thrown, hard
locking those documents.
This change resolves this by grabbing the highest page number from the
given fields and using it for the visibility check instead.
