Check `cfg` during CI and fix feature typos #37276

Job	Run time
check-bevy-internal-imports	4s
build (windows-latest)	1m 10s
check-cfg	44s
build (ubuntu-latest)	1m 9s
check-doc	1m 43s
check-missing-examples-in-docs	28s
build (macos-latest)	1m 22s
ci	1m 11s
miri	7m 10s
run-examples-on-windows-dx12	5m 0s
toml	2m 9s
check-missing-features-in-docs	32s
markdownlint	1m 17s
check-compiles	0s
build-wasm	0s
msrv	0s
	23m 59s

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