Air Fryer Fish Tacos with Avocado Salsa

Name: Air Fryer Fish Tacos with Avocado Salsa
Ingredients: 4 (6-oz.) skinless cod filets; 1 (1-oz.) packet taco seasoning; Olive oil cooking spray; 1 ripe avocado, halved, pitted, and flesh scooped; 1/2 c. cool water; 1/4 c. chopped white onion; 1/4 c. packed fresh cilantro leaves, plus more for serving; 2 tbsp. fresh lime juice; 1/2 tsp. (or more) kosher salt; 1 jalapeño, stemmed, seeded and thinly sliced, divided; 12 corn tortillas, warmed; 1/2 c. shredded red cabbage; 1/2 c. crumbled queso fresco or feta; Lime wedges, for serving