update handleOnboardingSubmit function to handle the must_pass option in the onboarding config, if true then the user must get that question correct else they automatically fail the onboarding test (can retry but fail that try).
if radio buttons are being used, user isn't penalized twice for 1 question incorrect (since you can only select one answer), prior to this fix, if a user selected the wrong answer and the type was radio buttons, the incorrect count would be 2 for that 1 question since they checked the incorrect answer and didn't check the correct answer (checkbox logic).
handleOnboardingSubmit
function to handle themust_pass
option in the onboarding config, iftrue
then the user must get that question correct else they automatically fail the onboarding test (can retry but fail that try).