[MM-31247] Add support for compressed export files with attachments (#16614)

* Include filepaths for post attachments

* Cleanup

* Enable exporting file attachments

* Fix file import

* Enable zip export

* Support creating missing directories when unzipping

* Add test

* Add translations

* Export direct channel posts attachments

* Fix returned values order

Remove pointer to slice in return

* [MM-31597] Implement export process job (#16626)

* Implement export process job

* Add translations

* Remove unused value

* [MM-31249] Add /exports API endpoint (#16633)

* Implement API endpoints to list, download and delete export files

* Add endpoint for single resource

* Update i18n/en.json

Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>

* Update i18n/en.json

Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>

Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>

* Fix var name

Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>

api4/export_local.go

@@ -0,0 +1,10 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package api4
+
+func (api *API) InitExportLocal() {
+	api.BaseRoutes.Exports.Handle("", api.ApiLocal(listExports)).Methods("GET")
+	api.BaseRoutes.Export.Handle("", api.ApiLocal(deleteExport)).Methods("DELETE")
+	api.BaseRoutes.Export.Handle("", api.ApiLocal(downloadExport)).Methods("GET")
+}