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/cmd/mattermost/commands/output.go

@@ -0,0 +1,21 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package commands
+
+import (
+	"fmt"
+	"os"
+)
+
+func CommandPrintln(a ...any) (int, error) {
+	return fmt.Println(a...)
+}
+
+func CommandPrintErrorln(a ...any) (int, error) {
+	return fmt.Fprintln(os.Stderr, a...)
+}
+
+func CommandPrettyPrintln(a ...any) (int, error) {
+	return fmt.Fprintln(os.Stdout, a...)
+}