Refactor, lint fix, and bug fix on admin/roles/form partial (#27558)

app/helpers/admin/roles_helper.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+module Admin
+  module RolesHelper
+    def privilege_label(privilege)
+      safe_join(
+        [
+          t("admin.roles.privileges.#{privilege}"),
+          content_tag(:span, t("admin.roles.privileges.#{privilege}_description"), class: 'hint'),
+        ]
+      )
+    end
+
+    def disable_permissions?(permissions)
+      permissions.filter { |privilege| role_flag_value(privilege).zero? }
+    end
+
+    private
+
+    def role_flag_value(privilege)
+      UserRole::FLAGS[privilege] & current_user.role.computed_permissions
+    end
+  end
+end