Fix storage typos

sevenkeys/database/cardstoragelocation.go

@@ -14,7 +14,7 @@ func GetLastPositionInBox(db *sql.DB, storageBox string) (int, error) {
 	query := "SELECT Position FROM CardStorageLocation WHERE StorageBox = ? ORDER BY Position DESC LIMIT 1"
 
 	var lastPosition int
-	err := db.QueryRow(query, storagebox).Scan(&lastPosition)
+	err := db.QueryRow(query, storageBox).Scan(&lastPosition)
 
 	if err == sql.ErrNoRows {
 		return 0, nil
@@ -35,8 +35,10 @@ func InsertCardStorageLocation(db *sql.DB, location CardStorageLocation) error {
 		return err
 	}
 
-	_, err := insert.Exec(location.CardPrintingId, location.StorageBox, location.Position, location.Source)
+	_, err = insert.Exec(location.CardPrintingId, location.StorageBox, location.Position, location.Source)
 	if err != nil {
 		return err
 	}
+
+	return nil
 }