Broken area chart on unordered ranges on x axis

[flash1293]

Kibana version: master

Describe the bug:

When using the range aggregation with an area chart and the ranges are not ordered correctly, the chart will not be rendered correctly

Steps to reproduce:

1. Create an area chart
2. Configure x axis as range agg
3. Use the following ranges: 5000-6000, 0-1000, 1000-2000

Expected behavior:

The chart is shown correctly, treating each range as an ordinal value on the x axis

Screenshots (if relevant):

Ordered ranges:

Unordered ranges:

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[nickofthyme]

I think this can be closed via #78154. The current vis_type_xy plugin renders the above configuration as so...