Support texture atlases in CustomCursor::Image #55798

Job	Run time
ci	4m 35s
miri	12m 12s
build (windows-latest)	14m 39s
build (ubuntu-latest)	7m 55s
check-bevy-internal-imports	13s
check-doc	12m 42s
build (macos-latest)	8m 11s
check-missing-examples-in-docs	32s
run-examples-macos-metal	5m 20s
toml	1m 56s
typos	6s
check-missing-features-in-docs	35s
markdownlint	1m 5s
check-compiles-no-std	2m 7s
check-compiles	7m 43s
msrv	1m 36s
build-wasm-atomics	1m 48s
build-wasm	1m 42s
	1h 24m 57s

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