Allow adding bookmarks to folders

src/components/extra_buttons/extra_buttons.js

src/components/extra_buttons/extra_buttons.vue

...tatus_bookmark_folder_menu/status_bookmark_folder_menu.js

...atus_bookmark_folder_menu/status_bookmark_folder_menu.vue

src/i18n/en.json

src/modules/statuses.js

src/services/api/api.service.js

src/services/entity_normalizer/entity_normalizer.service.js