US President Donald Trump welcomed Chinese President Xi Jinping to the White House on Thursday, with talks on trade and artificial intelligence and the growing strategic rivalry between the countries all in the spotlight during an elaborate state visit. Here are some major takeaways from the talks: TRADE DEAL EXTENDED, FOR NOW  The US secured an extension of its trade truce this week – but only a short one. US Treasury Secretary Scott Bessent said the two sides agreed to extend by two months a trade agreement that ended last year's trade war and was due to expire in November. The extension would give…