[MM-19948] Set version on module file and internal paths (#13186)

* [MM-19948] Set version on module file and internal paths

* Fixes after merge

* Fix i18n checker error

api4/websocket_test.go

@@ -13,7 +13,7 @@ import (
 	"github.com/gorilla/websocket"
 	"github.com/stretchr/testify/require"
 
-	"github.com/mattermost/mattermost-server/model"
+	"github.com/mattermost/mattermost-server/v5/model"
 )
 
 func TestWebSocket(t *testing.T) {