[docs] Fix API page ad space regression

[oliviertassinari]

Apply mui/material-ui#35201 in MUI X.

Before: https://next.mui.com/x/api/data-grid/data-grid/
After: https://deploy-preview-7051--material-ui-x.netlify.app/x/api/data-grid/data-grid/

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We should be able to remove this duplication of the ApiPage component as we move forward. It feels like we introduced debt when we decided to fork the file. The current diff now between the mono repo and MUI X seems to be about:

• Slots, Material UI should have https://mui.com/x/api/data-grid/data-grid/#slots too but doesn't yet
• A different way to display the import path. So this should be outside of the file.
• MUI X has a better way to show the global class name

mui/material-ui#35202 will also need to be applied twice. The same will happen with mui/material-ui#34085.

[mui-bot]

	Messages
📖	Netlify deploy preview: https://deploy-preview-7051--material-ui-x.netlify.app/

These are the results for the performance tests:

Test case	Unit	Min	Max	Median	Mean	σ
Filter 100k rows	ms	722.5	1,210.4	722.5	908.38	192.469
Sort 100k rows	ms	663.1	1,396	1,396	1,033.08	251.493
Select 100k rows	ms	208.9	495.8	298.3	309.92	101.972
Deselect 100k rows	ms	159.7	291.3	176.9	208.02	49.587

Generated by 🚫 dangerJS against 5b77c9c