Modules/users: add isNormalUser true

NormalUsers get:
- Home directory
- Can login

This is expected for users created through this module. We can make it configurable if the use arises

templates/clan/default/modules/shared.nix

@@ -23,6 +23,5 @@
       "video"
       "input"
     ];
-    uid = 1000;
   };
 }