Hi all, I already own my custom domain and would like to use it on my app but I can't figure out how to do it because it says that I need to add custom domains to my plan and when I click on the "Add Domain" button, it takes me to the upgrade page but it says nothing about domain on there. I'm currently on the free plan, do I need to simply upgrade to the standard plan to have the option to use my own domain? Thank you in advance!