[blog] Whats new since MUI X v8 [DX-51]

[joserodolfofreitas]

• [x] I have followed (at least) the PR section of the contributing guide.

Preview

https://deploy-preview-47140--material-ui.netlify.app/blog/mui-x-end-v8/

[mui-bot]

Netlify deploy preview

https://deploy-preview-47140--material-ui.netlify.app/

Bundle size report

Bundle	Parsed size	Gzip size
@mui/material	0B(0.00%)	0B(0.00%)
@mui/lab	0B(0.00%)	0B(0.00%)
@mui/system	0B(0.00%)	0B(0.00%)
@mui/utils	0B(0.00%)	0B(0.00%)

Details of bundle changes

Generated by :no_entry_sign: dangerJS against 5c00b0e4d4c45b5b83e021bbbf79a7faafad81f8