text: Title: GUI Setup Instructions for dedyn.io Domains Misleading
  Body: When creating a new dedyn domain, the GUI shows this:
  
  ![image](https://user-images.githubusercontent.com/1026940/215732730-03f50097-31e6-4e1e-ac0e-66d4f904f66f.png)
  
  This is misleading because the user **does not** need to setup any DS records for the case for dedyn domains.
  
  Proposed fix: the GUI should check if the name falls under the public suffix domains and make the instructions conditional. For dedyn / local public suffix domains, it should not display the information on DS records (or instead a hint that the DS records are deployed automatically).
  
  The list of local public suffixes is [available in `DomainSetup.vue` as `LOCAL_PUBLIC_SUFFIXES`](https://github.com/desec-io/desec-stack/blob/ef688c410e3918ff1aeef4b0585aa78b5e4dfc84/www/webapp/src/views/DomainSetup.vue#L165) but is currently not used.
  
  @Rotzbua Maybe you are interested in taking a look at this? :rocket: 