React 19 drops defaultProps on function components. Converted the 9 of
ours that used it (App, Navigation, ReSendEmail, Reconnect, OAuthLoginButton,
PageHeader, Page, EditDocument, EditSubscription) to destructured default
params; App defaults userId/emailAddress in its withTracker instead (it
spreads {...props} widely). Class components keep defaultProps (still
supported). The only defaultProps warnings left are from the react-share
npm package (CreatedButton/Icon), not our code. REST smoke byte-identical.
react-helmet 5 is unmaintained and breaks under React 18 StrictMode.
Same <Helmet> API in the 15 pages; HelmetProvider wraps <App/> in the
client entry. Browser-verified: per-page titles, meta description and
hreflang alternates all inject. REST smoke byte-identical.
Silences the dart-sass deprecation warnings that flooded every build:
- All @import of local partials (colors, mixins, and the CSS-emitting
partials) -> @use '...' as * (partials are pure defs, so 'as *' keeps the
global names and the ~25 call sites unchanged). Added explicit @use './colors'
to bootstrap-overrides.scss and cookies-eu.scss, which used -palette*
transitively (broke under @use's scoping).
- lighten(c, x%) -> color.adjust(c, $lightness: x%) and darken -> negative,
with @use 'sass:color' in the 6 affected files.
Compiles clean (byte-for-byte CSS behavior preserved).
