Add an optional `subsections` array to a user-guide section, rendered by
the new pure `DocsSubsections` component between the "How to" block and
the tips. Each entry has an id, a title, an optional italic status line,
an ordered list of steps and an optional trailing note. The ids are
registered in `sectionRefs` of `DocsContent`, so the existing hash
navigation (`/settings/users#import-export`) reaches the sub-sections
too. Only the Import section declares the key; the eleven other
sections render exactly as before.
The Import section gets six blocks in French and English: a generic
"export a CSV from your bank" block, then Desjardins, Tangerine, RBC,
National Bank and BMO with their verification status. The National Bank
and BMO blocks, which ask the user to send a header line through the
feedback form, carry the warning never to paste an account number, a
balance or a real transaction, in the JSON files and in the markdown
guide alike.
`docs/guide-utilisateur.md` receives the same six blocks in chapter 4,
a mention of the "Create a sample folder" button in its "How to", and a
"Quick start" in chapter 1 rewritten as the six steps of the
getting-started checklist, same order and wording as
`onboarding.checklist.items.*`.
`DocsSubsections.test.tsx` calls the component directly (no jsdom):
null for a section without sub-sections, one block per entry with its
id and ref registration, status line and note rendered only when
present, malformed entries dropped.
Resolves#355
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
