feat(docs): button to switch dark and light mode #15950

Job	Run time
dependency-review	12s
Lint	34s
Fuzzing	3m 26s
Test with SQLite enabled	32s
Test TypeScript types	41s
Test with Node.js 20 compiled --without-intl	6m 13s
Test with Node.js 22 compiled --without-intl	2m 9s
Test with Node.js 23 compiled --without-intl	4m 18s
test (20, macos-latest) / Test with Node.js 20 on macos-latest	4m 25s
test (20, ubuntu-latest) / Test with Node.js 20 on ubuntu-latest	3m 48s
test (22, macos-latest) / Test with Node.js 22 on macos-latest	3m 42s
test (20, windows-latest) / Test with Node.js 20 on windows-latest	5m 31s
test (22, ubuntu-latest) / Test with Node.js 22 on ubuntu-latest	4m 3s
test (22, windows-latest) / Test with Node.js 22 on windows-latest	5m 44s
test (23, macos-latest) / Test with Node.js 23 on macos-latest	3m 32s
test (23, ubuntu-latest) / Test with Node.js 23 on ubuntu-latest	3m 26s
test (23, windows-latest) / Test with Node.js 23 on windows-latest	4m 44s
automerge	0s
	57m 0s

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