Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

server/platform/services/sharedchannel/response.go

@@ -0,0 +1,16 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package sharedchannel
+
+type SyncResponse struct {
+	UsersLastUpdateAt int64    `json:"users_last_update_at"`
+	UserErrors        []string `json:"user_errors"`
+	UsersSyncd        []string `json:"users_syncd"`
+
+	PostsLastUpdateAt int64    `json:"posts_last_update_at"`
+	PostErrors        []string `json:"post_errors"`
+
+	ReactionsLastUpdateAt int64    `json:"reactions_last_update_at"`
+	ReactionErrors        []string `json:"reaction_errors"`
+}