Tooltip and formatting cleanup

...d/src/metabase/visualizations/components/ChartTooltip.jsx

.../src/metabase/visualizations/components/ChoroplethMap.jsx

...tend/src/metabase/visualizations/components/FunnelBar.jsx

...d/src/metabase/visualizations/components/FunnelNormal.jsx

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

...end/src/metabase/visualizations/visualizations/Funnel.jsx

frontend/src/metabase/visualizations/visualizations/Map.jsx