Update bootstrap vue rc20
What does this MR do?
- Updates bootstrap-vue
- fixes introduced errors
- Add babel-polyfill as that was required and included just by another dependency which did not need it anymore
How confident are you it won't break things if deployed?
Tests work...
Links to related issues
Checklist
-
added a test, or explain why one is not needed/possible... -
no unrelated changes -
asked someone for a code review -
joined #foodsharing-beta channel at https://slackin.yunity.org -
added an entry to CHANGELOG.md (description, merge request link, username(s))