Add shared channels related configuration under a E20 license check (#16415)

* Add shared channels related configuration under a E20 license check

* Apply PR suggestions; Default config value for shared channels

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

utils/license.go

@@ -160,6 +160,8 @@ func GetClientLicense(l *model.License) map[string]string {
 		props["CustomTermsOfService"] = strconv.FormatBool(*l.Features.CustomTermsOfService)
 		props["LockTeammateNameDisplay"] = strconv.FormatBool(*l.Features.LockTeammateNameDisplay)
 		props["Cloud"] = strconv.FormatBool(*l.Features.Cloud)
+		props["SharedChannels"] = strconv.FormatBool(*l.Features.SharedChannels)
+		props["RemoteClusterService"] = strconv.FormatBool(*l.Features.RemoteClusterService)
 	}
 
 	return props