By Sam Frost Lionel Messi and his $1 billion impact have made Inter Miami bigger than 14 Premier League clubs. Messi and Inter Miami are back in action on Wednesday evening as they kick off their MLS season, but he’s already made a huge difference to the club before stepping onto the pitch this season. The Argentine superstar joined Inter Miami in July, in a massive win for the David Beckham-owned team and the league. He was the spark that turned the team’s luck around both on and off the pitch. He came onboard when the club was at the bottom of the Eastern Conference standings, but in just a …