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/tsconfig.json

@@ -0,0 +1,8 @@
+{
+  "extends": "@unsend/typescript-config/react-library.json",
+  "compilerOptions": {
+    "outDir": "dist"
+  },
+  "include": ["**/*.tsx", "**/*.ts"],
+  "exclude": ["node_modules", "dist"]
+}