refactor: Format root-level files (#3858)

* ✨ Create `format.mjs` script

* 👕 Add lint exception

* ⚡ Add root formatting to `format` command

* 🎨 Fix glob in `.prettierignore`

* 🚚 Improve naming

* 🎨 Format root-level files

* ⚡ Simplify check

* ⚡ Add period to extension

* ⚡ Locate config

* ⚡ Add `ignore` arg

* 🚚 Move `config` and `ignore` after check

docker/images/n8n-custom/README.md

@@ -3,10 +3,10 @@
 Dockerfile which allows to package up the local n8n code into
 a docker image.
 
-
 ## Usage
 
 Execute the following in the n8n root folder:
+
 ```bash
 docker build -t n8n-custom -f docker/images/n8n-custom/Dockerfile .
 ```