By Dan Weil The Conference Board’s CEO Confidence index slid to 57 in the first quarter from 65 in the fourth quarter. Corporate CEOs are generally a confident lot, predicting good times ahead for their businesses. But raging inflation, continued supply chain disruption and worker shortages have dimmed their enthusiasm The Conference Board’s CEO Confidence Measure, compiled in collaboration with The Business Council, slid to 57 in the first quarter from 65 in the fourth quarter. That represents the third straight quarterly decline. The index has dropped from a record high of 82 in last year’s …