Fix component option order in threat_monitoring

This fixes `vue/order-in-components` violations in the
`{,ee/}app/assets/javascripts/threat_monitoring` directories.

Part of https://gitlab.com/gitlab-org/gitlab/-/issues/297216.

ee/app/assets/javascripts/threat_monitoring/components/app.vue

@@ -34,8 +34,8 @@ export default {
     ThreatMonitoringSection,
     NetworkPolicyList,
   },
-  inject: ['documentationPath'],
   mixins: [glFeatureFlagsMixin()],
+  inject: ['documentationPath'],
   props: {
     defaultEnvironmentId: {
       type: Number,