[charts] Extract pie layout computation

[alexfauquette]

Simplify the pie logic by sharing the center and radius computation in the plugins.

The idea is to latter extract an independent FocussedPieSlice without having to duplicate the logic

[mui-bot]

Deploy preview: https://deploy-preview-20611--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	🔺+199B(+0.06%)	🔺+36B(+0.03%)
@mui/x-charts-pro	🔺+199B(+0.04%)	🔺+65B(+0.05%)
@mui/x-charts-premium	🔺+199B(+0.04%)	🔺+16B(+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 :no_entry_sign: dangerJS against 930b2f8d655fbe85913abc8e5970cab92287ff81

[codspeed-hq[bot]]

CodSpeed Performance Report

Merging #20611 will not alter performance

_{Comparing alexfauquette:pie-chart-layout (930b2f8) with master (06e8498)[^unexpected-base]} [^unexpected-base]: No successful run was found on master (2fec5b6) during the generation of this report, so 06e8498 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report.

Summary

✅ 13 untouched