refactor go code for pocketbase 0.23.0 (#300)

beszel/migrations/initial-settings.go

@@ -1,19 +1,16 @@
 package migrations
 
 import (
-	"github.com/pocketbase/dbx"
-	"github.com/pocketbase/pocketbase/daos"
+	"github.com/pocketbase/pocketbase/core"
 	m "github.com/pocketbase/pocketbase/migrations"
 )
 
 func init() {
-	m.Register(func(db dbx.Builder) error {
-		dao := daos.New(db)
-
-		settings, _ := dao.FindSettings()
+	m.Register(func(app core.App) error {
+		settings := app.Settings()
 		settings.Meta.AppName = "Beszel"
 		settings.Meta.HideControls = true
 
-		return dao.SaveSettings(settings)
+		return app.Save(settings)
 	}, nil)
 }