WIP: add missing modifierClick avoid preventDefault to links

[Haroenv]

Summary

You should be able to cmd-click on every link rendered by InstantSearch and open it in a new tab. The default behaviour should never be prevented if it's a modifier or special click.

Result

• Menu in React InstantSearch respects cmd-click
• Breadcrumb in InstantSearch.js respects cmd-click

TODO:

• tests (possibly something global that cmd-clicks on every link and shows the DOM didn't change?)
• ensure there's no other cases of this pattern

[codesandbox-ci]

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Latest deployment of this branch, based on commit 0eed703:

Sandbox	Source
InstantSearch.js	Configuration
react-instantsearch-app	Configuration
example-react-instantsearch-default-theme	Configuration
example-react-instantsearch-next-app-dir-example	Configuration
example-vue-instantsearch-default-theme	Configuration