[charts] Refactor getAxisExtremum

[bernardobelchior]

Refactor getAxisExtremum. Applied several small changes:

• Rename to getAxisExtrema
• Move the logic for deciding the min/max to getAxisExtrema instead of axisExtremumCallback
• Change it to a named function so that it shows up in performance traces

[mui-bot]

Deploy preview: https://deploy-preview-19627--material-ui-x.netlify.app/

Bundle size report

Bundle	Parsed size	Gzip size
@mui/x-data-grid	0B(0.00%)	0B(0.00%)
@mui/x-data-grid-pro	0B(0.00%)	0B(0.00%)
@mui/x-data-grid-premium	0B(0.00%)	0B(0.00%)
@mui/x-charts	🔺+22B(+0.01%)	🔺+13B(+0.01%)
@mui/x-charts-pro	🔺+22B(+0.01%)	🔺+12B(+0.01%)
@mui/x-date-pickers	0B(0.00%)	0B(0.00%)
@mui/x-date-pickers-pro	0B(0.00%)	0B(0.00%)
@mui/x-tree-view	0B(0.00%)	0B(0.00%)
@mui/x-tree-view-pro	0B(0.00%)	0B(0.00%)

Details of bundle changes

Generated by 🚫 dangerJS against d09f7eb

[codspeed-hq]

CodSpeed Performance Report

Merging #19627 will not alter performance

_{Comparing bernardobelchior:refactor-get-axis-extrema (d09f7eb) with master (74f8873)¹}

Summary

✅ 12 untouched

Footnotes

1. No successful run was found on master (28566f3) during the generation of this report, so 74f8873 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩