Move content type and ordering out of the filter sidebar into a feed toolbar (approved
proposal 2): a prominent content-type chip row (Normal/Shorts/Live toggle chips) with the
sort control + count + reshuffle in a quieter row beneath it. The toolbar renders even on
'no matches' so content-type can be turned back on after it filtered everything out. The
sidebar keeps Show / Upload date / Language / Topic; 'sort' and 'content' widgets removed
from the layout (normalizeLayout drops them from any saved layout). New feed.sortLabel
string (HU/EN/DE).
Add a "Mine / Library" segmented toggle (shown on the feed page) that switches
FeedFilters.scope between the user's own subscriptions and the whole shared
catalog. A read-scope-less user (signed in but no YouTube grant) can now browse
and manage the shared library on their own account — the empty "my feed" state
offers a "browse the shared library" shortcut alongside the connect-YouTube CTA.
scope is preserved across "Clear all" (it's a mode, not a filter) and kept out
of the URL state. Trilingual strings (HU/EN/DE) for the toggle and the CTA.
Feed, VideoCard, Sidebar, PlayerModal, Channels, Stats, SettingsPanel,
OnboardingWizard, NotificationCenter, Toaster, ErrorBoundary and the relativeTime
helper are now fully translated in Hungarian, English and German, each with its own
locale area file (auto-loaded). Key parity verified across all three languages.
