infoBox: Create an info box for the main body of a dashboard.
In shinydashboard: Create Dashboards with 'Shiny'

An info box displays a large icon on the left side, and a title, value (usually a number), and an optional smaller subtitle on the right side. Info boxes are meant to be placed in the main body of a dashboard.

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infoBox(title, value = NULL, subtitle = NULL,
  icon = shiny::icon("bar-chart"), color = "aqua", width = 4,
  href = NULL, fill = FALSE)

`title`	Title text.
`value`	The value to display in the box. Usually a number or short text.
`subtitle`	Subtitle text (optional).
`icon`	An icon tag, created by `icon`.
`color`	A color for the box. Valid colors are listed in validColors.
`width`	The width of the box, using the Bootstrap grid system. This is used for row-based layouts. The overall width of a region is 12, so the default valueBox width of 4 occupies 1/3 of that width. For column-based layouts, use `NULL` for the width; the width is set by the column that contains the box.
`href`	An optional URL to link to.
`fill`	If `FALSE` (the default), use a white background for the content, and the `color` argument for the background of the icon. If `TRUE`, use the `color` argument for the background of the content; the icon will use the same color with a slightly darkened background.