Adding ti index to the ravelled particle index too #603

Job	Run time
py3.13 \| macos \| unit tests	9m 2s
py3.13 \| ubuntu \| unit tests	10m 29s
mypy	3m 29s
py3.13 \| windows \| unit tests	16m 54s
py3.13 \| macos \| integration tests	12m 59s
py3.10 \| ubuntu \| unit tests	11m 0s
py3.13 \| ubuntu \| integration tests	15m 42s
py3.11 \| ubuntu \| unit tests	10m 34s
py3.13 \| windows \| integration tests	25m 10s
py3.12 \| ubuntu \| unit tests	10m 49s
py3.10 \| ubuntu \| integration tests	22m 19s
merge-test-artifacts	5s
	2h 28m 32s

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