Add unsend campaign feature (#45)

* Add unsend email editor

Add email editor

Add more email editor

Add renderer partial

Add more marketing email features

* Add more campaign feature

* Add variables

* Getting there

* campaign is there mfs

* Add migration

packages/email-editor/src/index.ts

@@ -0,0 +1,3 @@
+import "./styles/index.css";
+
+export * from "./editor";