Update dependency react-i18next to v10.12.2

Thalia Technicie
2019-11-14T13:59:50+01:00

This MR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [react-i18next](https://github.com/i18next/react-i18next) | dependencies | minor | [`10.11.5` -> `10.12.2`](https://renovatebot.com/diffs/n...