DUBAI, United Arab Emirates—Israel’s figurehead president met the crown prince of Abu Dhabi on Sunday on the first official visit to the United Arab Emirates by the country’s head of state, the latest sign of deepening ties between the two nations as tensions rise in the region. The UAE and Israel normalized relations in the fall of 2020, part of a series of U.S.-brokered diplomatic deals between Israel and Arab states that had long avoided formal relations with Israel over its decades-old conflict with the Palestinians. President Isaac Herzog met with Crown Prince Sheikh Mohammed bin Zayed Al Nahyan, the de facto Emirati leader. The UAE’s state-run WAM news agency described a royal welcome for the Israeli leader at the palace, with the Israeli national anthem blaring and 21-gun salute roaring. During over two hours of talks, Herzog urged more countries in the region to join in recognizing Israel and …