Update code editor snippets to Hybrid.Razor14

[enfJoao]

I'm submitting a

[x] feature request

...about

[x] APIs like REST

Current Behavior / Expected Behavior

Code for SU check still points to @Dnn.User.IsSuperUser.

Your environment

Either make the API version check (Like moving the @inherits Custom.Hybrid.Razor14 to a view setting instead of the file code), or show both versions of the snippet.
The way this is now, I have to manually check the documentation to find the proper CmsContext.User.IsSystemAdmin.