BUG - stop using Scrollspy #607

Job	Run time
a11y-tests (ubuntu-latest, 3.12)	3m 59s
run-pytest (ubuntu-latest, 3.9)	1m 39s
build PST docs (ubuntu-latest, 3.12)	1m 17s
run-pytest (ubuntu-latest, 3.10)	6m 2s
build PST docs (macos-latest, 3.12)	4m 3s
run-pytest (ubuntu-latest, 3.11)	1m 25s
build PST docs (windows-latest, 3.12)	4m 46s
run-pytest (ubuntu-latest, 3.12)	1m 42s
build PST docs (ubuntu-latest, 3.9, 6.1)	1m 17s
run-pytest (ubuntu-24.04, 3.11)	1m 36s
run-pytest (ubuntu-24.04, 3.12)	1m 39s
run-pytest (macos-14, 3.10)	3m 53s
run-pytest (macos-14, 3.11)	3m 50s
run-pytest (macos-14, 3.12)	3m 56s
run-pytest (windows-latest, 3.9)	3m 7s
run-pytest (windows-latest, 3.10)	3m 58s
run-pytest (windows-latest, 3.11)	3m 8s
run-pytest (windows-latest, 3.12)	3m 1s
run-pytest (ubuntu-latest, 3.9, 6.1)	1m 33s
run-pytest (ubuntu-latest, 3.12, dev)	2m 28s
lighthouse-audit	4m 57s
Check coverage	53s
profiling	28s
	1h 4m 37s

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