Tabler action button

Now by checking the source code of shiny::actionButton we can that:

• Tabler and shiny are using the button tag
• Table don’t use the class btn-default

actionButton <- function (inputId, label, icon = NULL, 
                          width = NULL, ...)  {
                          
  value <- restoreInput(id = inputId, default = NULL)
  
  tags$button(
    id = inputId, 
    style = if (!is.null(width)) {
      paste0("width: ", validateCssUnit(width), ";")
    }, 
    type = "button", 
    class = "btn btn-default action-button", 
    `data-val` = value, 
    list(validateIcon(icon), label), ...
  )
}