After a heist and the departure of its boss, the French institution wrestles with water leaks, strikes and much-criticised plans for a €1bn renovationJust over a year ago, Laurence des Cars, the intellectually brilliant (if famously prickly) former head of the largest and most-visited museum in the world, wrote a somewhat alarming note to her boss, France’s culture minister.Des Cars, who on Tuesday resigned as president of the Louvre, lamented the advanced state of disrepair of the iconic museum...