Fix identity entity capabilities path

[chelshaw]

This issue was causing a bug where the capabilities on an identity/entity model had the incorrect updatePath due to identityType not properly being passed into the apiPath method. This change hardcodes the path for the entity model, since by the model's own definition the type is entity.

Investigation is still needed for why the computed property was not being passed into the apiPath method properly, but this should fix adverse side affects such as tokens with policy including the path identity/entity/id/* not having the correct options on an entity dropdown.

Sample policy:

path "identity/entity/id/*"
{
  capabilities = ["list", "read", "delete", "sudo", "create", "update"]
}

[Monkeychip]

Looks good! Thanks for the quick fix.