fixes #1171 and #1169

app/controllers/contents/courseware.php

app/controllers/course/courseware.php

app/views/course/courseware/action_widget.php

app/views/course/courseware/export_widget.php

app/views/course/courseware/view_widget.php

lib/classes/sidebar/VueWidget.php

resources/vue/base-components.js

resources/vue/components/SidebarWidget.vue

...rces/vue/components/courseware/CoursewareActionWidget.vue

...rces/vue/components/courseware/CoursewareExportWidget.vue

resources/vue/components/courseware/CoursewareRibbon.vue

resources/vue/components/courseware/CoursewareViewWidget.vue

resources/vue/components/courseware/IndexApp.vue

templates/widgets/vue-widget.php