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/channels/utils/urlencode.go

@@ -0,0 +1,19 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package utils
+
+import (
+	"net/url"
+	"strings"
+)
+
+func URLEncode(str string) string {
+	strs := strings.Split(str, " ")
+
+	for i, s := range strs {
+		strs[i] = url.QueryEscape(s)
+	}
+
+	return strings.Join(strs, "%20")
+}