[docs] Update useMediaQuery example to avoid confusion with print

[epeicher]

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

Closes #17595

[mui-pr-bot]

Details of bundle changes.

Comparing: 9a538bc...95e43cb

bundle	parsed diff	gzip diff	prev parsed	current parsed	prev gzip	current gzip
@material-ui/core	0.00%	0.00%	334,815	334,815	91,340	91,340
@material-ui/core/Paper	0.00%	0.00%	69,248	69,248	20,556	20,556
@material-ui/core/Paper.esm	0.00%	0.00%	62,520	62,520	19,303	19,303
@material-ui/core/Popper	0.00%	0.00%	28,405	28,405	10,179	10,179
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@material-ui/core/TrapFocus	0.00%	0.00%	3,766	3,766	1,597	1,597
@material-ui/core/styles/createMuiTheme	0.00%	0.00%	16,351	16,351	5,819	5,819
@material-ui/core/useMediaQuery	0.00%	0.00%	2,488	2,488	1,050	1,050
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@material-ui/system	0.00%	0.00%	15,583	15,583	4,342	4,342
Button	0.00%	0.00%	79,690	79,690	24,259	24,259
Modal	0.00%	0.00%	14,542	14,542	5,114	5,114
Portal	0.00%	0.00%	2,907	2,907	1,316	1,316
Rating	0.00%	0.00%	70,240	70,240	21,944	21,944
Slider	0.00%	0.00%	75,381	75,381	23,270	23,270
colorManipulator	0.00%	0.00%	3,835	3,835	1,519	1,519
docs.landing	0.00%	0.00%	54,267	54,267	14,346	14,346
docs.main	-0.00%	-0.00%	599,265	599,258	191,022	191,016
packages/material-ui/build/umd/material-ui.production.min.js	0.00%	0.00%	305,706	305,706	87,931	87,931

Generated by 🚫 dangerJS against 95e43cb

[oliviertassinari]

@epeicher I have added an example of how the dark mode preference can be leveraged. What do you think about it? I would propose that we defer the preferred reduced motion for #16367.

[oliviertassinari]

Oh, we might always want to say that print doesn't work.

[oliviertassinari]

Thanks