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/app/web_conn.go

@@ -0,0 +1,20 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package app
+
+import (
+	"github.com/mattermost/mattermost-server/v6/model"
+	"github.com/mattermost/mattermost-server/v6/server/channels/app/platform"
+)
+
+// PopulateWebConnConfig checks if the connection id already exists in the hub,
+// and if so, accordingly populates the other fields of the webconn.
+func (a *App) PopulateWebConnConfig(s *model.Session, cfg *platform.WebConnConfig, seqVal string) (*platform.WebConnConfig, error) {
+	return a.Srv().Platform().PopulateWebConnConfig(s, cfg, seqVal)
+}
+
+// NewWebConn returns a new WebConn instance.
+func (a *App) NewWebConn(cfg *platform.WebConnConfig) *platform.WebConn {
+	return a.Srv().Platform().NewWebConn(cfg, a, a.ch)
+}