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/tailwind.config.ts

@@ -0,0 +1,7 @@
+import { type Config } from "tailwindcss";
+import sharedConfig from "@unsend/tailwind-config/tailwind.config";
+
+export default {
+  ...sharedConfig,
+  content: ["./src/**/*.tsx", "./src/**/*.ts"],
+} satisfies Config;