MM-36687 CRT push notifications (#18347)

* CRT changes

* Lint fix

* Moved postId check

* Moved postId check

* Lint fix

* Misc

* Added test case for badge count while clearing notifications

* Fixed count when CRT is on and added isCRTEnabled, teamId to isIdLoaded notifications

* test fix

* isCRTEnabledForUser capitalised

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

model/push_notification.go

@@ -64,6 +64,7 @@ type PushNotification struct {
 	OverrideIconURL  string `json:"override_icon_url,omitempty"`
 	FromWebhook      string `json:"from_webhook,omitempty"`
 	Version          string `json:"version,omitempty"`
+	IsCRTEnabled     bool   `json:"is_crt_enabled"`
 	IsIdLoaded       bool   `json:"is_id_loaded"`
 }