feat: signature rejection (#1472)

## Description

Adds support for rejecting a given document informing the document
owner.

Flows for resolving a rejection don't currently exist so it's up to the
document owner to reach out to the recipient and work out a way to move
forward via a new document or offline agreement.

## Related Issue


## Changes Made

- Added new rejection properties to the recipient schema
- Added API endpoints to support rejection
- Added email templates for notifying the document owner and recipient
- Added a dialog on the signing page to start the rejection flow.

## Testing Performed

- Manually tested the flow end to end
- Automated tests are planned

packages/lib/utils/document-audit-logs.ts

@@ -349,6 +349,16 @@ export const formatDocumentAuditLogAction = (
         identified: result,
       };
     })
+    .with({ type: DOCUMENT_AUDIT_LOG_TYPE.DOCUMENT_RECIPIENT_REJECTED }, ({ data }) => {
+      const userName = prefix || _(msg`Recipient`);
+
+      const result = msg`${userName} rejected the document`;
+
+      return {
+        anonymous: result,
+        identified: result,
+      };
+    })
     .with({ type: DOCUMENT_AUDIT_LOG_TYPE.EMAIL_SENT }, ({ data }) => ({
       anonymous: data.isResending ? msg`Email resent` : msg`Email sent`,
       identified: data.isResending