Bring about 6 cups of water to a boil and add the salt. Stir until the salt is dissolved fully. Let cool to room temperature. Place the turkey breast into a large stock pot so the cavity of the bird is facing up. Place the remaining brine ingredients into the pot with the bird and cover with the salted water. Fill with extra cool water until the bird is completely submerged. Cover the pot with plastic wrap and place in the fridge for 18 to 24 hours. When ready to cook the bird, remove from the pot and rinse bird with clean water. Pat dry with paper towels. Combine the softened butter, black pepper, garlic powder, thyme and oregano in a bowl until mixed evenly. Carefully pull up on the skin of the breast and work the butter in, between the breast and the skin. Season the outside of the breast with extra black pepper and garlic powder if desired. Preheat your Air Fryer for at least 5 minutes at 375 degrees F. Place the turkey breast in the air fryer with the breast side down. Let cook for 45 minutes at 375 degrees F. Flip turkey breast over and cover the top of the breast with foil. Continue cooking an additional 35 minutes at 375 degrees F. Remove foil and cook an additional 10 minutes, until turkey breast is golden brown and an instant read thermometer in the thickest portion of the breast reads 165 degrees F. Remove from air fryer and cover loosely with foil for 10 to 15 minutes, until ready to slice. Enjoy!