DoorDash announced Monday it’s partnering with Albertsons Companies to offer on-demand grocery delivery from nearly 2,000 of Albertson’s stores, including Safeway, Vons and Jewel-Osco. DoorDash shares were up more than 5.5% Monday, while Albertsons gained more than 2%. The partnership shows how DoorDash can help grocery stores like Albertsons compete with Amazon and Walmart, which currently lead the online grocery delivery …