Dominique Charriau/WireImage/Getty ImagesNo one wears Chanel quite like Kristen Stewart. Her latest surprising take on the French house was not only practical for Paris’s ongoing heatwave, but continued her streak of decidedly unexpected red carpet statements. For the fourth day of the Biarritz Film Festival, where she’s presiding over the event’s international feature film competition, Stewart stepped out in a sleeveless black knit Chanel jumps…