- HeaderWithSupport is now lg:hidden (all its callers are desktop-full-width
store/profile pages), removing the stray mobile back+support bar on desktop.
- Constrain + title the previously mobile-only pages so their content doesn't
stretch edge-to-edge on desktop: store edit/create form (StoreForm), add
product, shipping method, financial sub-pages (cash-funds/reports/
transactions), order detail, instagram auth; and profile add/edit address,
set detail, and payment result. Forms use a narrow centered column, lists/
details a wider one. Transactions keeps its filter button (header restyled,
not hidden).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>