The sidebar's recent activity list (SidebarActivitySections) rendered its
session rows without an inline timestamp on web/desktop — the compact
relative label only appeared in the hover tooltip and on touch runtimes.
Render the existing i18n-backed formatSessionCompactDateLabel inline in
the recent rows' metadata slot, alongside the goal/branch glyphs, for
web/desktop too. It keeps the same hover-fade as the other metadata, so
the hover-revealed row actions never overlap it, and the full date
stays available in the row tooltip.
No new strings: the label reuses common.relative.* keys.
Fixes#2560
Serhii Dziupin
81e8ee7c33