Enable dark mode on website #10054

Job	Run time
Build artifacts	1m 23s
Testing chores	5m 6s
Big-endian debian w/ Node.js latest (${{ matrix.shard }})	0s
ubuntu-latest w/ Node.js 18.x (1/2)	8m 52s
ubuntu-latest w/ Node.js 18.x (2/2)	8m 17s
ubuntu-latest w/ Node.js 19.x (1/2)	10m 24s
ubuntu-latest w/ Node.js 19.x (2/2)	11m 45s
ubuntu-latest w/ Node.js 20.x (1/2)	9m 36s
ubuntu-latest w/ Node.js 20.x (2/2)	10m 42s
windows-latest w/ Node.js 18.x (1/3)	7m 17s
windows-latest w/ Node.js 18.x (2/3)	19m 20s
windows-latest w/ Node.js 18.x (3/3)	10m 22s
macos-latest w/ Node.js 18.x (1/3)	5m 37s
macos-latest w/ Node.js 18.x (2/3)	9m 39s
macos-latest w/ Node.js 18.x (3/3)	6m 2s
	2h 4m 22s

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