Target reportedly lost market share in several of its key product categories in the first quarter.The retailer’s share shrank in food and household goods, clothing, electronics, homewares and furniture — categories that collectively account for 60% of its revenue, Reuters reported Friday (June 14), citing data from market research firm GlobalData.In addition, Target’s purchase rates and average spending per shopper have dropped, the report said, pointing to data from online shopping tracker PriceSpider.A Ta ...