Baseball remains on hiatus in the United States, but the nation’s top court still managed to reinforce a three-strike rule.The U.S. Supreme Court in a unanimous opinion issued Monday ruled that indigent prisoners generally get no more than three attempts at filing lawsuits in forma pauperis — forgoing filing fees — regardless of whether those filings were dismissed with or without prejudice.Citing the high court’s “duty to call balls and strikes,” Justice Elena Kagan wrote that the language in the Prison Litigation Reform …