Roenroll 1443 accessibility fixes

src/app/app.module.ts

src/app/core/header/header.component.html

...degree-planner/course-search/course-search.component.html

src/app/degree-planner/degree-planner.component.html

src/app/degree-planner/degree-planner.component.ts

.../course-details-dialog/course-details-dialog.component.ts

...logs/modify-plan-dialog/modify-plan-dialog.component.html

...-planner/dialogs/notes-dialog/notes-dialog.component.html

...onfirm-dialog/remove-course-confirm-dialog.component.html

...ree-planner/shared/course-item/course-item.component.html

...lanner/sidenav-menu-item/sidenav-menu-item.component.html

...lanner/sidenav-menu-item/sidenav-menu-item.component.scss

...-planner/sidenav-menu-item/sidenav-menu-item.component.ts

...gree-planner/term-container/term-container.component.html

...gree-planner/year-container/year-container.component.html

...d/components/course-details/course-details.component.html

...ared/dialogs/confirm-dialog/confirm-dialog.component.html

...shared/dialogs/prompt-dialog/prompt-dialog.component.html

src/app/shared/pipes/academic-year-state.pipe.ts

src/app/shared/shared.module.ts