chore: use PascalCase for PolicyIds and remove ValidatorHashes because its unused #1337

Job	Run time
build	1m 41s
devshell-tests (nixos)	20s
devshell-tests (macos)	42s
deploy-rustdoc	1m 56s
local-environment-tests	0s
upload-chain-specs	39s
deploy-argocd	0s
local-environment-tests-post-merge	9m 45s
argocd-tests	0s
local-environment-tests-alert	0s
teardown-argocd	0s
pre-merge-checks-complete	0s
local-environment-tests-post-merge-alert	6s
post-merge-actions-complete	2s
	15m 11s

Provide feedback