List secrets

https://redmine.teklia.com/issues/10664

Requires enterprise#58

When the enterprise feature flag is set, a new Secrets option should be available under the top-right user menu, leading to a new view at /secret.

This view is declared in the router as requiring a verified email and enterprise. It shows a paginated list of all secrets that the user has access to, as returned by ListSecrets, as a table with the ID as an ItemId and the name.

This list is managed by a new secretStore Pinia store, with a secretPage state that just contains the result from the API and a list action that fills this state.