https://stackoverflow.com/questions/36676263/chart-js-v2-hiding-grid-lines
https://www.chartjs.org/docs/latest/configuration/tooltip.html
https://github.com/chartjs/Chart.js/issues/3682
https://jsfiddle.net/CharlieWebNancy/apawqy6n/
https://www.it-swarm.dev/pt/charts/chart.js-como-obter-barras-combinadas-e-graficos-de-linhas/1047890189/
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