Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

server/templates/verify_body.mjml

@@ -0,0 +1,14 @@
+<mjml>
+  <mj-head>
+    <mj-include path="./partials/style.mjml" />
+  </mj-head>
+  <mj-body css-class="emailBody">
+    <mj-wrapper mj-class="email">
+      <mj-include path="./partials/logo.mjml" />
+      <mj-include path="./partials/header_verify.mjml" />
+      <mj-include path="./partials/verify.mjml" />
+      <mj-include path="./partials/questions_footer.mjml" />
+      <mj-include path="./partials/email_footer.mjml" />
+    </mj-wrapper>
+  </mj-body>
+</mjml>