MM-14289 & MM-14884 Push notification acknowledge id and include sender name (#10736)

* MM-14289 Add Push notification acknowledge identifier and store tracing logs

* MM-14884 include SenderName property in Push Notifications

* Remove @ sign from channel Name in push notifications

* Fix i18n

* Fix push notification model

* fix TestPostNotificationGetChannelName

* Remove colon from model constant

* Fix Notification Registry tests

* Make postId optional for clear notifications

* Update http status when service is not available

Co-Authored-By: enahum <nahumhbl@gmail.com>

store/sqlstore/store.go

@@ -99,4 +99,5 @@ type SqlStore interface {
 	UserTermsOfService() store.UserTermsOfServiceStore
 	LinkMetadata() store.LinkMetadataStore
 	getQueryBuilder() sq.StatementBuilderType
+	NotificationRegistry() store.NotificationRegistryStore
 }