Pulse cranberries and sugar in a food processor 3 to 4 times or until coarsely chopped, stopping to scrape down sides. Add chopped green onions, chopped jalapeño pepper, grated fresh ginger, lemon juice, and salt; pulse 3 to 4 times or until chopped. Stir in chopped fresh cilantro. Cover and chill 2 to 24 hours. Serve with tortilla chips. Garnish with lime wedges, if desired.