feat: page update notifications (#2074)

* feat: watchers notification and email preferences

* fix: email copy

* digests

* clean up

* fix

* clean up

* move backlinks queue-up to history processor

* fix

* fix keys

* feat: group notifications

* filter

* adjust email digest window

apps/server/src/integrations/transactional/emails/page-update-email.tsx

@@ -0,0 +1,36 @@
+import { Link, Section, Text } from '@react-email/components';
+import * as React from 'react';
+import { content, link, paragraph } from '../css/styles';
+import { EmailButton, getGreetingName, MailBody } from '../partials/partials';
+
+interface Props {
+  userName: string;
+  actorName: string;
+  pageTitle: string;
+  pageUrl: string;
+}
+
+export const PageUpdateEmail = ({
+  userName,
+  actorName,
+  pageTitle,
+  pageUrl,
+}: Props) => {
+  return (
+    <MailBody>
+      <Section style={content}>
+        <Text style={paragraph}>Hi {getGreetingName(userName)},</Text>
+        <Text style={paragraph}>
+          <strong>{actorName}</strong> updated{' '}
+          <Link href={pageUrl} style={link}>
+            <strong>{pageTitle}</strong>
+          </Link>
+          .
+        </Text>
+      </Section>
+      <EmailButton href={pageUrl}>View page</EmailButton>
+    </MailBody>
+  );
+};
+
+export default PageUpdateEmail;