Adjust the width of errorbar in g_lineplot()

[qiliu1013]

What happened?

It's good to have fexisibility to adjust the width of the errorbar in g_lineplot(). width = 0.45 is too small if the x scale is large.

  if (!is.null(interval)) {
    p <- p +
      ggplot2::geom_errorbar(
        ggplot2::aes(ymin = .data[[whiskers[1]]], ymax = .data[[whiskers[max(1, length(whiskers))]]]),
        width = 0.45,
        position = position
      )

sessionInfo()

> packageVersion("tern")
[1] ‘0.9.1’

Relevant log output

No response

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