MM-18818 Prompt admins to set the Support Email (#17296)

* MM-18818 Set default support to empty and handled the same in email templates

* #MM-18818 Admin advisor now warns for inconfigured support email address

* Updated text

* #MM-18818 gofmt'ed files

* #MM-18818 updated text and removed unused i18n strings:

* #MM-18818 updated i18n string ordering

* #MM-18818 Added test for support email advisory

* MM-18818 gofmt'd the file

* MM-18818 separated contextual notifications from configuration notifications in Admin Advisor

* #MM-18818 prevented support email with whitepsaces from being detected as filled

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/server.go

@@ -1422,6 +1422,13 @@ func runCheckWarnMetricStatusJob(a *App) {
 	}, time.Hour*model.WARN_METRIC_JOB_INTERVAL)
 }
 
+func runCheckAdminSupportStatusJob(a *App) {
+	doCheckAdminSupportStatus(a)
+	model.CreateRecurringTask("Check Admin Support Status Job", func() {
+		doCheckAdminSupportStatus(a)
+	}, time.Hour*model.WARN_METRIC_JOB_INTERVAL)
+}
+
 func doSecurity(s *Server) {
 	s.DoSecurityUpdateCheck()
 }
@@ -1586,6 +1593,16 @@ func doCheckWarnMetricStatus(a *App) {
 	}
 }
 
+func doCheckAdminSupportStatus(a *App) {
+	isE0Edition := model.BuildEnterpriseReady == "true"
+
+	if strings.TrimSpace(*a.Config().SupportSettings.SupportEmail) == model.SUPPORT_SETTINGS_DEFAULT_SUPPORT_EMAIL {
+		if err := a.notifyAdminsOfWarnMetricStatus(model.SYSTEM_METRIC_SUPPORT_EMAIL_NOT_CONFIGURED, isE0Edition); err != nil {
+			mlog.Error("Failed to send notifications to admin users.", mlog.Err(err))
+		}
+	}
+}
+
 func (s *Server) StopMetricsServer() {
 	s.metricsLock.Lock()
 	defer s.metricsLock.Unlock()