fixed test runner crashing

frontend/package.json

frontend/src/components/AutoLogout.vue

frontend/src/components/SubmissionType.vue

frontend/src/components/export/DataExport.vue

frontend/src/components/export/ExportDialog.vue

frontend/src/components/export/InstanceExport.vue

...end/src/components/feedback_list/FeedbackListHelpCard.vue

...nd/src/components/feedback_list/FeedbackSearchOptions.vue

frontend/src/components/feedback_list/FeedbackTable.vue

frontend/src/components/mixins/exportMixin.ts

frontend/src/components/mixins/parseCSVMapMixin.ts

.../src/components/student_list/StudentListReverseMapper.vue

...tend/src/components/subscriptions/SubscriptionForList.vue

frontend/src/components/tutor_list/TutorList.vue

frontend/src/main.ts

frontend/src/pages/base/FeedbackHistoryPage.vue

frontend/tests/unit/components/*Setup.spec.ts

frontend/tests/unit/components/AutoLogout.spec.ts

frontend/tests/unit/mixins/exportMixin.spec.ts

frontend/yarn.lock