PLT-3193 Add channel notification preferences for push and email noti… (#5500)

* PLT-3193 Add channel notification preferences for push and email notifications

* unit tests, model validation and localization

* Feedback review

* Adding back allowFromCache check

* Setting push and email to use default settings

* Move props as constants

* address feedback

app/channel.go

@@ -226,18 +226,27 @@ func UpdateChannelMemberNotifyProps(data map[string]string, channelId string, us
 	}
 
 	// update whichever notify properties have been provided, but don't change the others
-	if markUnread, exists := data["mark_unread"]; exists {
-		member.NotifyProps["mark_unread"] = markUnread
+	if markUnread, exists := data[model.MARK_UNREAD_NOTIFY_PROP]; exists {
+		member.NotifyProps[model.MARK_UNREAD_NOTIFY_PROP] = markUnread
 	}
 
-	if desktop, exists := data["desktop"]; exists {
-		member.NotifyProps["desktop"] = desktop
+	if desktop, exists := data[model.DESKTOP_NOTIFY_PROP]; exists {
+		member.NotifyProps[model.DESKTOP_NOTIFY_PROP] = desktop
+	}
+
+	if email, exists := data[model.EMAIL_NOTIFY_PROP]; exists {
+		member.NotifyProps[model.EMAIL_NOTIFY_PROP] = email
+	}
+
+	if push, exists := data[model.PUSH_NOTIFY_PROP]; exists {
+		member.NotifyProps[model.PUSH_NOTIFY_PROP] = push
 	}
 
 	if result := <-Srv.Store.Channel().UpdateMember(member); result.Err != nil {
 		return nil, result.Err
 	} else {
 		InvalidateCacheForUser(userId)
+		InvalidateCacheForChannelMembersNotifyProps(channelId)
 		return member, nil
 	}
 }