Getty Images; Chelsea Jia Feng/BIThe risk of recession is rising, according to Mike Wilson, Morgan Stanley's top stock strategist.The bank thinks the S&P 500 could drop below 5,500 in the event of a hard landing.Wilson outlined four investment themes to consider amid rising recession forecasts. Wall Street thinks the risk of a recession is growing, and according to Morgan Stanley's top stock strategist, there are a few moves investors can make t…