Improve documentation site layout #516

Job	Run time
build / generate-license	2m 29s
build / lint-toml	8s
build / lint-python	9s
build / lint-rust	27s
build / check-crates-patch	-1s
build / Linux x86_64 (3.13t)	26s
build / Linux x86_64 (3.14t)	28s
build / Linux x86_64 (abi3)	27s
build / Linux arm64 (3.14t)	24s
build / Linux arm64 (abi3)	24s
build / Linux arm64 (3.13t)	25s
build / Windows x86_64 (abi3)	39s
build / Windows x86_64 (3.14t)	32s
build / macOS arm64 (abi3)	27s
build / macOS arm64 (3.13t)	23s
build / macOS arm64 (3.14t)	27s
build / Windows x86_64 (3.13t)	38s
build / macOS x86_64 (${{ matrix.python-tag }})	0s
build / Source distribution	0s
build / Build docs	1s
build / Merge build artifacts	1s
test	0s
	8m 54s

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