Far from Dubai’s glitzy towers, Mariam Al-Kalbani’s henna-dyed fingers weave brightly coloured threads in a skill she hopes young Emirati women watching her can preserve for the future. The art of hand-weaving braided shiny ribbons to adorn traditional clothing and bags is called Al Talli, and is on UNESCO’s Intangible Cultural Heritage of Humanity list. But with the relentless pace of change in the United Arab Emirates, its days may…