refactor: use utils methods & create isMulti for consistency

.vscode/settings.json

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

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

...mponents/Analysis/ProfileComparator/ProfileComparator.tsx

.../Analysis/ProfileComparator/ProfileComparatorRow.spec.tsx

...nents/Analysis/ProfileComparator/ProfileComparatorRow.tsx

...eComparator/__snapshots__/ProfileComparator.spec.tsx.snap

src/components/Charts/AxisRight.tsx

src/components/Charts/Bar.tsx

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

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

src/components/CommonKit/Switch/StyledSwitch.tsx

src/components/Consumption/ConsumptionView.tsx

src/components/Consumption/FluidButtons/FluidButton.spec.tsx

src/components/Consumption/FluidButtons/FluidButton.tsx

...tion/FluidButtons/__snapshots__/FluidButton.spec.tsx.snap

...ion/FluidButtons/__snapshots__/FluidButtons.spec.tsx.snap

src/components/ConsumptionVisualizer/DataloadNoValue.tsx

src/components/ConsumptionVisualizer/DataloadSection.tsx

...components/ConsumptionVisualizer/DataloadSectionValue.tsx