The generic core/css/{base,components,screens} buckets are gone; every shared
stylesheet now lives beside the subsystem that owns it:
base/tokens.css, base/themes.css, components/aurora-background.css -> core/theme/
base/style.css -> core/theme/base.css (carve deferred)
components/modal.css -> core/overlays/
components/topbar.css, components/sidebar.css -> core/topbar/
components/forms.css, components/config.css -> core/forms/ (config.css under forms)
components/update-notifier.css -> core/update-notifier/
screens/login.css -> core/boot/auth/
screens/loading-screen.css -> core/loading/
screens/setup-wizard.css -> core/setup/
href-only rewrites in index.html; the <link> line ORDER is unchanged, so the
cascade is preserved (no @import anywhere). All 13 /core css hrefs verified to
resolve. (The JS for overlays/topbar/forms/update-notifier/loading/setup/auth
co-locates in the next phase.)
Signed-off-by: librelad <librelad@digitalangels.vip>
2da0b22719