StandardRB fixes

app/models/application_user_claim.rb

@@ -9,7 +9,7 @@ class ApplicationUserClaim < ApplicationRecord
     groups
   ].freeze
 
-  validates :user_id, uniqueness: { scope: :application_id }
+  validates :user_id, uniqueness: {scope: :application_id}
   validate :no_reserved_claim_names
 
   # Parse custom_claims JSON field
@@ -25,7 +25,7 @@ class ApplicationUserClaim < ApplicationRecord
 
     reserved_used = parsed_custom_claims.keys.map(&:to_s) & RESERVED_CLAIMS
     if reserved_used.any?
-      errors.add(:custom_claims, "cannot override reserved OIDC claims: #{reserved_used.join(', ')}")
+      errors.add(:custom_claims, "cannot override reserved OIDC claims: #{reserved_used.join(", ")}")
     end
   end
 end