feat(accessibility): allow bars to handle keyboard focus

...hlyAnalysis/__snapshots__/ElecHalfHourChart.spec.tsx.snap

...mptionCard/__snapshots__/MaxConsumptionCard.spec.tsx.snap

src/components/Charts/Bar.tsx

src/components/Charts/BarChart.tsx

src/components/Charts/__snapshots__/Bar.spec.tsx.snap

src/components/Charts/__snapshots__/BarChart.spec.tsx.snap

src/components/DateNavigator/DateNavigator.spec.tsx

src/components/DateNavigator/DateNavigator.tsx

src/components/DateNavigator/DateNavigatorFormat.tsx

...s/DateNavigator/__snapshots__/DateNavigator.spec.tsx.snap

src/components/DateNavigator/datenavigator.scss

src/components/DateNavigator/datenavigatorformat.scss

src/components/FluidChart/FluidChartSlide.tsx

src/locales/fr.json

src/styles/components/_barchart.scss

src/utils/date.spec.ts

src/utils/date.ts

src/utils/utils.spec.ts

src/utils/utils.ts