Charts 3.0 how set xAxis gridline between bars like before?

Before the update we had this :

The grids bars where between each bars, but after the update, we have this now :

Do you know what to change in order to have our last behavior?

Here it's our configuration :

```
//Chart configuration
self.chartView.drawBarShadowEnabled = false
self.chartView.drawGridBackgroundEnabled = false
self.chartView.setScaleEnabled(false)
self.chartView.highlightPerTapEnabled = false
self.chartView.highlightPerDragEnabled = false
self.chartView.drawValueAboveBarEnabled = false
self.chartView.noDataText = "list_issues_no_issue".localizedString()
self.chartView.chartDescription?.font = textFont
self.chartView.chartDescription?.textColor = UIColor.fBlueColor()

self.chartView.leftAxis.enabled = false

let rightAxis = self.chartView.rightAxis
rightAxis.drawGridLinesEnabled = false
rightAxis.labelFont = UIFont.preferredFont(forTextStyle: UIFontTextStyle.caption1)
rightAxis.labelTextColor = UIColor.fBlueColor()
rightAxis.valueFormatter = DefaultAxisValueFormatter(decimals: 1)

self.chartView.chartDescription?.text = ""
self.chartView.legend.enabled = false

let xAxis = self.chartView.xAxis
xAxis.drawGridLinesEnabled = true
xAxis.axisLineColor = UIColor.fBlueColor()
xAxis.labelPosition = .bottomInside
xAxis.labelFont = UIFont.preferredFont(forTextStyle: UIFontTextStyle.caption1)
```

Regards

Start by reviewing the supplied Swift chart configuration, especially the xAxis settings, and compare its gridline behavior with Charts 3.0. Reproduce the before-and-after layouts and trace how x-axis gridlines are positioned relative to bars. Done means restoring gridlines between bars without changing the intended labels or other axis settings.

Written by the indexing model from the issue text.