Check power level before live sharing location

[NicolasBuquet]

Pull Request Checklist

• [x] I read the contributing guide
• [ ] UI change has been tested on both light and dark themes, in portrait and landscape orientations and on iPhone and iPad simulators
• [ ] Accessibility has been taken into account.
• [x] Pull request is based on the develop branch
• [x] Pull request contains a changelog file in ./changelog.d
• [x] You've made a self review of your PR
• [ ] Pull request includes screenshots or videos of UI changes
• [x] Pull request includes a sign off