Optimize SQLite3 access. Mainly separate read access from write access.

Based on tips from https://archive.is/Xfjh6#selection-257.0-278.0

persistence/property_repository_test.go

@@ -3,6 +3,7 @@ package persistence
 import (
 	"context"
 
+	"github.com/navidrome/navidrome/db"
 	"github.com/navidrome/navidrome/log"
 	"github.com/navidrome/navidrome/model"
 	. "github.com/onsi/ginkgo/v2"
@@ -13,7 +14,7 @@ var _ = Describe("Property Repository", func() {
 	var pr model.PropertyRepository
 
 	BeforeEach(func() {
-		pr = NewPropertyRepository(log.NewContext(context.TODO()), getDBXBuilder())
+		pr = NewPropertyRepository(log.NewContext(context.TODO()), NewDBXBuilder(db.Db()))
 	})
 
 	It("saves and restore a new property", func() {