Keto Birthday Cake

Name: Keto Birthday Cake
Ingredients: Cooking spray; Assorted gel food coloring; 1 2/3 c. coconut flakes; 3 1/2 c. almond flour; 3/4 c. coconut flour; 1 tsp. baking powder; 3/4 tsp. baking soda; 1/4 tsp. kosher salt; 3/4 c. (1 1/2 sticks) butter, softened, plus more for brushing; 1/2 c. Swerve granular; 4 large eggs; 8 large egg whites; 2 tsp. pure vanilla extract; 1 c. unsweetened almond milk; 2 tsp. distilled white vinegar; 1 c. (2 sticks) butter, softened; 1 (8-ounce) block cream cheese, softened; 1 c. Swerve confectioners; 2 tbsp. tablespoons unsweetened cocoa powder; 1 1/2 c. sugar-free semisweet chocolate chips