docs(chore): remove classnames dependency #5339

Job	Run time
Find path changes	21s
Rust lints	5m 47s
Turborepo Integration (ubuntu-latest)	1m 44s
Turborepo Integration (macos-13)	3m 29s
Turborepo Rust testing on macos	15m 6s
Turborepo rust check	4m 52s
Turborepo Rust testing on ubuntu	4m 35s
Turborepo Integration (windows-latest)	3m 9s
Turborepo Rust testing on windows	17m 32s
`with-svelte` example	-1s
`kitchen-sink` example	-1s
`basic` example	-1s
`non-monorepo` example	-1s
`with-tailwind` example	-1s
Turborepo Test Summary	3s
Cleanup / cleanup	4s
	56m 37s

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