Replaced list-tile components with their list-item equivalent

frontend/src/components/BaseLayout.vue

frontend/src/components/UserOptions.vue

frontend/src/components/export/ExportDialog.vue

frontend/src/components/student_list/StudentListMenu.vue

...rc/components/submission_type/SubmissionTypesOverview.vue

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

frontend/src/pages/base/TutorReviewerBaseLayout.vue

frontend/src/pages/reviewer/ReviewerLayout.vue

frontend/src/pages/student/StudentLayout.vue

frontend/src/pages/tutor/TutorLayout.vue

functional_tests/test_import.py