cryptography lab_experiments_symmetric key encryption standards (des)_quizzes

[gayatripurigilla]

Defect description:after going to the quiz section, we are given an option to select the answer in mcq's. but there is no submit button and we cannot review the answer. either removing the check boxes or adding a submit button to the quizzes makes it perfect.**steps to reproduce the issue:* go to the iiit hyderabad page in vlabs main website. click on the cryptography lab. go to the experiments section. click on symmetric key encryption standards (des) experiment. go to the quiz section.expected result:i expect to see the submit button for reviewing answers.Actual result:no submit button is there.screenshots:**

[kurasaiteja]

Same issue #35

[TSaiRamReddy]

commit id : 172cfba7130c2482b37874069ddc61366d72f2fd

[SindhuraReddy99]

Valid fix @TSaiRamReddy

[sujith98rao]

valid fix @TSaiRamReddy