tui: preserve spinner registration (#35292) #133

Job	Run time
compute-hash (x86_64-darwin, macos-15-intel)	11m 16s
compute-hash (aarch64-linux, blacksmith-4vcpu-ubuntu-2404-arm)	1d 0h 0m 1s
compute-hash (x86_64-linux, blacksmith-4vcpu-ubuntu-2404)	1d 0h 0m 1s
compute-hash (aarch64-darwin, macos-latest)	7m 58s
update-hashes	0s
	2d 0h 19m 16s

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