handle null value correctly on the row chart (#26528)

frontend/src/metabase/lib/formatting/nullable.ts

frontend/src/metabase/static-viz/lib/format.ts

frontend/src/metabase/visualizations/lib/apply_tooltips.js

frontend/src/metabase/visualizations/lib/renderer_utils.js

...tabase/visualizations/shared/components/RowChart/types.ts

...e/visualizations/shared/components/RowChart/utils/data.ts

.../visualizations/shared/components/RowChart/utils/scale.ts

...lizations/shared/components/RowChartView/RowChartView.tsx

frontend/src/metabase/visualizations/shared/utils/data.ts

...se/visualizations/visualizations/RowChart/utils/events.ts

...se/visualizations/visualizations/RowChart/utils/format.ts