Merge branch '296712-policy-name-search' into 'master'

...pts/threat_monitoring/components/alerts/alert_filters.vue

...ripts/threat_monitoring/components/alerts/alerts_list.vue

...ascripts/threat_monitoring/components/alerts/constants.js

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

...ipts/threat_monitoring/components/network_policy_list.vue

ee/changelogs/unreleased/296712-policy-name-search.yml

...threat_monitoring/components/alerts/alert_filters_spec.js

...d/threat_monitoring/components/alerts/alerts_list_spec.js

locale/gitlab.pot