fix: use WAL for SQLite by default and set busy_timeout (#388)

Co-authored-by: Kyle Mendell <kmendell@ofkm.us>

backend/internal/bootstrap/bootstrap.go

@@ -8,6 +8,8 @@ import (
 func Bootstrap() {
 	initApplicationImages()
 
+	migrateConfigDBConnstring()
+
 	db := newDatabase()
 	appConfigService := service.NewAppConfigService(db)