fix #547

...ue/components/courseware/CoursewareAccordionContainer.vue

resources/vue/components/courseware/CoursewareAudioBlock.vue

...urces/vue/components/courseware/CoursewareBlockHelper.vue

...es/vue/components/courseware/CoursewareBlockadderItem.vue

...urces/vue/components/courseware/CoursewareCanvasBlock.vue

resources/vue/components/courseware/CoursewareChartBlock.vue

...ue/components/courseware/CoursewareContainerAdderItem.vue

...ces/vue/components/courseware/CoursewareCourseManager.vue

resources/vue/components/courseware/CoursewareDateBlock.vue

.../vue/components/courseware/CoursewareDialogCardsBlock.vue

...ces/vue/components/courseware/CoursewareDocumentBlock.vue

...urces/vue/components/courseware/CoursewareFileChooser.vue

...ces/vue/components/courseware/CoursewareFolderChooser.vue

...e/components/courseware/CoursewareManagerCopySelector.vue

...vue/components/courseware/CoursewareStructuralElement.vue

resources/vue/components/courseware/CoursewareToolsAdmin.vue

...es/vue/components/courseware/CoursewareWellcomeScreen.vue

resources/vue/mixins/courseware/export.js