She’s keeping up with the Knicks. Following Monday night’s Met Gala, Kylie Jenner and boyfriend Timothée Chalamet were once again sat courtside at Wednesday night’s Knicks playoff game against the Philadephia 76ers. Decked out in their best orange and blue, Jenner chose to keep it simple in a pair of EB jeans ($295) and white Guizio tank ($38), with an orange jacket tied around her waist. As for her accessorizes, she managed to source the perfect pair of vintage Miu Miu mules ($480) for the occasion — and added a pricey blue Birkin bag. Kylie Jenner and Timothée Chalamet sat courtside at the Knicks game in New York City on Wednesday night. Getty Images Jenner carried her deep blue crocodile Birkin and bright orange jacket to support the team’s colors. Ulices Ramales / BACKGRID A similar deep blue crocodile Hermès Birkin 35 is currently available for sale at Sotheby’s for $63,000.…