private void rawTableGridView_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            InventoryModal inventoryModal = new InventoryModal(0);

            inventoryModal.nameTextBox.Text     = this.rawTableGridView.CurrentRow.Cells[0].Value.ToString();
            inventoryModal.quantityTextBox.Text = this.rawTableGridView.CurrentRow.Cells[1].Value.ToString();
            inventoryModal.ShowDialog();
        }
        private void inventoryAddButton_Click_1(object sender, EventArgs e)
        {
            InventoryModal inventoryModal = new InventoryModal(1);

            inventoryModal.Visible = true;
        }