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

webapp/scripts/skip_integrity_check.js

@@ -0,0 +1,14 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+const fs = require('fs');
+const content = JSON.parse(fs.readFileSync('package-lock.json', 'utf-8'));
+
+// Skip integrity check for mmjstool, which differs on Apple Silicon M1.
+// @see https://github.com/npm/cli/issues/2846
+delete content.dependencies.mmjstool.integrity;
+delete content.packages['node_modules/mmjstool'].integrity;
+delete content.dependencies.marked.integrity;
+delete content.packages['node_modules/marked'].integrity;
+
+fs.writeFileSync('package-lock.json', JSON.stringify(content, null, 2) + '\n');